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Acanfora G, Carillo AM, Dello Iacovo F, Salatiello M, Pisapia P, Bellevicine C, Troncone G, Vigliar E. Interobserver variability in cytopathology: How much do we agree? Cytopathology 2024; 35:444-453. [PMID: 38534091 DOI: 10.1111/cyt.13378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024]
Abstract
Interobserver variability remains a major challenge for cytopathologists despite the development of standardized reporting and classification systems. Indeed, whereas moderate-to-good interobserver agreement is generally achievable when the differential diagnosis between benign and malignant entities is straightforward, high levels of variability make the diagnostic interpretation of atypical and suspicious samples not consistent. This review explores the landscape of interobserver agreement in cytopathology across different anatomical sites.
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Affiliation(s)
- Gennaro Acanfora
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
| | - Anna Maria Carillo
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
| | | | - Maria Salatiello
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
| | - Claudio Bellevicine
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
| | - Giancarlo Troncone
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
| | - Elena Vigliar
- Department of Public Health, University of Naples, 'Federico II', Naples, Italy
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2
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Ciaparrone C, Maffei E, L'Imperio V, Pisapia P, Eloy C, Fraggetta F, Zeppa P, Caputo A. Computer-assisted urine cytology: Faster, cheaper, better? Cytopathology 2024. [PMID: 38894608 DOI: 10.1111/cyt.13412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/21/2024]
Abstract
Recent advancements in computer-assisted diagnosis (CAD) have catalysed significant progress in pathology, particularly in the realm of urine cytopathology. This review synthesizes the latest developments and challenges in CAD for diagnosing urothelial carcinomas, addressing the limitations of traditional urinary cytology. Through a literature review, we identify and analyse CAD models and algorithms developed for urine cytopathology, highlighting their methodologies and performance metrics. We discuss the potential of CAD to improve diagnostic accuracy, efficiency and patient outcomes, emphasizing its role in streamlining workflow and reducing errors. Furthermore, CAD tools have shown potential in exploring pathological conditions, uncovering novel biomarkers and prognostic/predictive features previously unknown or unseen. Finally, we examine the practical issues surrounding the integration of CAD into clinical practice, including regulatory approval, validation and training for pathologists. Despite the promising results, challenges remain, necessitating further research and validation efforts. Overall, CAD presents a transformative opportunity to revolutionize diagnostic practices in urine cytopathology, paving the way for enhanced patient care and outcomes.
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Affiliation(s)
- Chiara Ciaparrone
- Department of Pathology, University Hospital of Salerno, Salerno, Italy
| | - Elisabetta Maffei
- Department of Pathology, University Hospital of Salerno, Salerno, Italy
| | - Vincenzo L'Imperio
- Department of Medicine and Surgery, Pathology, IRCCS Fondazione San Gerardo dei Tintori, University of Milano-Bicocca, Milan, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples "Federico II", Naples, Italy
| | - Catarina Eloy
- Pathology Laboratory, Institute of Molecular Pathology and Immunology of University of Porto (IPATIMUP), Porto, Portugal
| | | | - Pio Zeppa
- Department of Pathology, University Hospital of Salerno, Salerno, Italy
- Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
| | - Alessandro Caputo
- Department of Pathology, University Hospital of Salerno, Salerno, Italy
- Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
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3
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VandenBussche CJ, Heaney CD, Kates M, Hooks JJ, Baloga K, Sokoll L, Rosenthal D, Detrick B. Urinary IL-6 and IL-8 as predictive markers in bladder urothelial carcinoma: A pilot study. Cancer Cytopathol 2024; 132:50-59. [PMID: 37812596 DOI: 10.1002/cncy.22767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/05/2023] [Accepted: 08/16/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Cytokines are known to be a key a factor in numerous malignancies and to exert an important regulatory role in the tumor microenvironment. Interest has grown in understanding how cytokines modulate the tumor microenvironment and which cytokines may serve as markers of the tumor process; however, a complete picture of the cytokine landscape in bladder cancer remains unclear. METHODS Fresh urine specimens with sufficient volume were collected at random intervals. The urine concentrations of IL-8 (CXCL8), CCL18, and CXCL9 were determined using the standard commercially available enzyme immunoassay. The urine concentrations of IL-6 were determined using the high sensitivity enzyme immunoassay kit. Urinary cytokine concentrations were normalized with urinary creatinine concentrations. RESULTS Significantly elevated concentrations of IL-6 and IL-8 were detected in the urine from patients with urothelial carcinoma on follow-up compared to patients with benign follow-up. The presence of both IL-6 and IL-8 in the urine samples from the high grade urothelial carcinoma (HGUC) cohort revealed a clear discrimination when compared to samples from patients with benign follow-up. The presence of the combination of both IL-6 and IL-8 had a sensitivity of 90.0% and a specificity of 81.25%. Similar data were obtained when receiver operating characteristic analysis was performed on both IL-6 and IL-8 concentrations in the urine from patients with HGUC vs. the hematuria cohort. CONCLUSIONS The presence of IL-6 and IL-8 in urine specimens may have predictive value for urothelial carcinoma. However, a large longitudinal study is required to statistically eliminate confounding factors and support this theory.
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Affiliation(s)
- Christopher J VandenBussche
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Christopher D Heaney
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Max Kates
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Johns Hopkins Greenberg Bladder Cancer Institute, Baltimore, Maryland, USA
| | - John J Hooks
- Laboratory of Immunology, Virology Section, NEI, NIH, Bethesda, Maryland, USA
| | - Kelly Baloga
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lori Sokoll
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dorothy Rosenthal
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Barbara Detrick
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Greenland NY, Khorsandi N, Peng Y, Balassanian R, Tabatabai ZL, Tiffany Shing TW, Vohra P. Utility and performance of cell blocks in urine cytology: Experience at three teaching hospitals. Cancer Cytopathol 2023; 131:614-625. [PMID: 37291084 DOI: 10.1002/cncy.22730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/17/2023] [Accepted: 05/04/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND The use of cell block (CB) preparation is underused in urine cytology (UC) and varies among hospitals. In addition to confirming a diagnosis, CBs can be useful in cases of metastatic disease, diagnoses requiring immunohistochemical (IHC) staining, and for ancillary studies. The role of this study is to examine the performance of CBs for UC at three affiliated teaching hospitals. MATERIALS AND METHODS A retrospective review of UC cases with a CB was conducted at a county hospital, Veterans Affairs hospital, and tertiary university-based hospital. For each specimen, patient demographics, specimen type, volume, original diagnosis, and IHC stains were recorded. Each case was reviewed for diagnosis based on ThinPrep alone, diagnosis based on ThinPrep and CB, utility of CB for diagnosis, and CB cellularity. RESULTS A total of 250 UC specimens with CB from 186 patients was identified. Bladder washes were the most common (72.1%). IHC stains were performed on 17.2% of cases. On blinded review, CB preparation was deemed useful in 61.2% of cases, with the highest rate for suspicious for high-grade urothelial carcinoma (SHGUC) cases (87.0%). The diagnosis based on ThinPrep review changed with incorporation of CB in 13.2% of cases, with the highest rate for SHGUC cases (43.5%). CONCLUSIONS The results demonstrate that use of CB in UC confirms the final diagnosis in more than one-half of cases and changes the diagnosis in a subset of cases. Use of CB was most helpful in the SHGUC category. Further evaluation of the types of cases in which CB are prepared is warranted.
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Affiliation(s)
- Nancy Y Greenland
- Department of Anatomic Pathology, University of California, San Francisco, California, USA
- Department of Anatomic Pathology, San Francisco Veterans Affairs Health Care System, San Francisco, California, USA
| | - Nikka Khorsandi
- Department of Anatomic Pathology, University of California, San Francisco, California, USA
| | - Yue Peng
- Department of Anatomic Pathology, University of California, San Francisco, California, USA
- Department of Anatomic Pathology, San Francisco Veterans Affairs Health Care System, San Francisco, California, USA
| | - Ronald Balassanian
- Department of Anatomic Pathology, University of California, San Francisco, California, USA
| | - Z Laura Tabatabai
- Department of Anatomic Pathology, University of California, San Francisco, California, USA
- Department of Anatomic Pathology, San Francisco Veterans Affairs Health Care System, San Francisco, California, USA
| | - Tze Wai Tiffany Shing
- Department of Anatomic Pathology, Zuckerberg San Francisco General, San Francisco, California, USA
| | - Poonam Vohra
- Department of Anatomic Pathology, University of California, San Francisco, California, USA
- Department of Anatomic Pathology, Zuckerberg San Francisco General, San Francisco, California, USA
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Lebret T, Paoletti X, Pignot G, Roumiguié M, Colombel M, Savareux L, Verhoest G, Guy L, Rigaud J, De Vergie S, Poinas G, Droupy S, Kleinclauss F, Courtade-Saïdi M, Piaton E, Radulescu C, Rioux-Leclercq N, Kandel-Aznar C, Renaudin K, Cochand-Priollet B, Allory Y, Nivet S, Rouprêt M. Artificial intelligence to improve cytology performance in urothelial carcinoma diagnosis: results from validation phase of the French, multicenter, prospective VISIOCYT1 trial. World J Urol 2023; 41:2381-2388. [PMID: 37480491 PMCID: PMC10465399 DOI: 10.1007/s00345-023-04519-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/01/2023] [Indexed: 07/24/2023] Open
Abstract
PURPOSE Cytology and cystoscopy, the current gold standard for diagnosing urothelial carcinomas, have limits: cytology has high interobserver variability with moderate or not optimal sensitivity (particularly for low-grade tumors); while cystoscopy is expensive, invasive, and operator dependent. The VISIOCYT1 study assessed the benefit of VisioCyt® for diagnosing urothelial carcinoma. METHODS VISIOCYT1 was a French prospective clinical trial conducted in 14 centers. The trial enrolled adults undergoing endoscopy for suspected bladder cancer or to explore the lower urinary tract. Participants were allocated either Group 1: with bladder cancer, i.e., with positive cystoscopy or with negative cystoscopy but positive cytology, or Group 2: without bladder cancer. Before cystoscopy and histopathology, slides were prepared for cytology and the VisioCyt® test from urine samples. The diagnostic performance of VisioCyt® was assessed using sensitivity (primary objective, 70% lower-bound threshold) and specificity (75% lower-bound threshold). Sensitivity was also assessed by tumor grade and T-staging. VisioCyt® and cytology performance were evaluated relative to the histopathological assessments. RESULTS Between October 2017 and December 2019, 391 participants (170 in Group 1 and 149 in Group 2) were enrolled. VisioCyt®'s sensitivity was 80.9% (95% CI 73.9-86.4%) and specificity was 61.8% (95% CI 53.4-69.5%). In high-grade tumors, the sensitivity was 93.7% (95% CI 86.0-97.3%) and in low-grade tumors 66.7% (95% CI 55.2-76.5%). Sensitivity by T-staging, compared to the overall sensitivity, was higher in high-grade tumors and lower in low-grade tumors. CONCLUSION VisioCyt® is a promising diagnostic tool for urothelial cancers with improved sensitivities for high-grade tumors and notably for low-grade tumors.
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Affiliation(s)
| | - Xavier Paoletti
- Institut Curie, Saint Cloud, France
- Université Versailles Saint-Quentin, Université Paris-Saclay, Saint Cloud, France
| | | | - Mathieu Roumiguié
- Urology Department, Centre Hospitalier Universitaire (CHU) Rangueil, IUCT Oncopole, Toulouse, France
| | - Marc Colombel
- Urology Department, Hôpital Edouard Herriot, Lyon, France
| | - Laurent Savareux
- Urology Auvergne Centre, Clinique de la Chataigneraie, Beaumont, France
| | | | - Laurent Guy
- Urology Department of Urology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | | | | | - Grégoire Poinas
- Urology Department, Clinique Beausoleil, Montpellier, France
| | | | | | | | - Eric Piaton
- Centre de Pathologie Est, Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Bron, France
| | - Camelia Radulescu
- Service d'Anatomie et Cytologie Pathologiques, Hôpital Foch, Suresnes, France
| | | | | | - Karine Renaudin
- Department of Pathology, CHU Hôtel Dieu, Nantes, France
- Centre de Recherche en Transplantation et en Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France
| | | | - Yves Allory
- Department of Pathology, Institut Curie, Saint-Cloud, France
- Institut Curie, PSL Research University, CNRS, UMR144, Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | | | - Morgan Rouprêt
- Urology Department, GRC n°5, Predictive ONCO-URO, Pitié-Salpêtrière Hospital, AP-HP, Sorbonne University, Paris, France
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Christofidis K, Moulavasilis N, Fragkiadis E, Goutas D, Lazaris AC, Mitropoulos D, Mikou P. Diagnosis of Low-Grade Urothelial Neoplasm in the Era of the Second Edition of the Paris System for Reporting Urinary Cytology. Diagnostics (Basel) 2023; 13:2625. [PMID: 37627884 PMCID: PMC10453841 DOI: 10.3390/diagnostics13162625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/31/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The Paris System for Reporting Urinary Cytology (TPS) is considered the gold standard when it comes to diagnostic classifications of urine specimens. Its second edition brought some important changes, including the abolition of the diagnostic category of "low-grade urothelial neoplasm (LGUN)", acknowledging the inability of cytology to reliably discern low-grade urothelial lesions. METHODS In this retrospective study, we assessed the validity of this change, studying the cytological diagnoses of histologically diagnosed low-grade urothelial carcinomas during a three-year period. Moreover, we correlated the sum of the urinary cytology diagnoses of this period with the histological diagnoses, whenever available. RESULTS Although all the cytological diagnoses of LGUN were concordant with the histological diagnoses, most low-grade urothelial carcinomas were misdiagnosed cytologically. Subsequently, the positive predictive value (PPV) of urinary cytology for the diagnosis of LGUN was 100%, while the sensitivity was only 21.7%. Following the cyto-histopathological correlation of the sum of the urinary cytology cases, the sensitivity of urinary cytology for the diagnosis of high-grade urothelial carcinoma (HGUC) was demonstrated to be 90.1%, the specificity 70.8%, the positive predictive value (PPV) 60.3%, the negative predictive value (NPV) 93.6% and the overall accuracy 77.2%, while for LGUN, the values were 21.7%, 97.2%, 87.5%, 58.6% and 61.9%, respectively. Risk of high-grade malignancy was 0% for the non-diagnostic (ND), 4.8% for the non-high-grade urothelial carcinoma (NHGUC), 33.3% for the atypical urothelial cells (AUCs), 65% for the suspicious for high-grade urothelial carcinoma (SHGUC), 100% for the HGUC and 12.5% for the LGUN diagnostic categories. CONCLUSIONS This study validates the incorporation of the LGUN in the NHGUC diagnostic category in the second edition of TPS. Moreover, it proves the ability of urinary cytology to safely diagnose HGUC and stresses the pivotal role of its diagnosis.
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Affiliation(s)
| | - Napoleon Moulavasilis
- 1st Urology Department, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece; (N.M.); (E.F.); (D.M.)
| | - Evangelos Fragkiadis
- 1st Urology Department, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece; (N.M.); (E.F.); (D.M.)
| | - Dimitrios Goutas
- 1st Laboratory of Pathology, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece; (D.G.); (A.C.L.)
| | - Andreas C. Lazaris
- 1st Laboratory of Pathology, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece; (D.G.); (A.C.L.)
| | - Dionisios Mitropoulos
- 1st Urology Department, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, Greece; (N.M.); (E.F.); (D.M.)
| | - Panagiota Mikou
- Cytopathology Department, Laiko General Hospital, 11527 Athens, Greece;
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Mullapudi SS, Rahmat JN, Mahendran R, Lim YK, Ong LT, Wong KY, Chiong E, Kang ET, Neoh KG. Tumor-targeting albumin nanoparticles as an efficacious drug delivery system and potential diagnostic tool in non-muscle-invasive bladder cancer therapy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 46:102600. [PMID: 36064034 DOI: 10.1016/j.nano.2022.102600] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/16/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Current intravesical chemotherapy for non-muscle invasive bladder cancer (NMIBC) has limited efficacy due to loss of the instilled agent from urine voiding and the agent's lack of specificity for the tumors. We developed a nanocarrier (txCD47-HNP, ∼100 nm) based on human serum albumin conjugated with a peptide that targets the cluster of differentiation 47 receptor overexpressed on bladder cancer (BC) cells. The IC50 of gemcitabine elaidate (GEM) loaded in the txCD47-HNP was almost an order of magnitude lower than that of free GEM. In a mouse orthotopic BC model, GEM loaded in txCD47-HNP effectively reduced the tumor burden. Tumor cells in BC patients' urine can also be targeted by fluorescence-labeled txCD47-HNP resulting in >83 % of the cells exhibiting fluorescence. Thus, txCD47-HNP can potentially be a theranostic agent in NMIBC management by serving as a targeted drug delivery vehicle as well as an alternative to urine cytology.
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Affiliation(s)
- Sneha Sree Mullapudi
- Department of Biomedical Engineering, National University of Singapore, Kent Ridge 117583, Singapore
| | - Juwita Norasmara Rahmat
- Department of Biomedical Engineering, National University of Singapore, Kent Ridge 117583, Singapore
| | - Ratha Mahendran
- Department of Surgery, National University of Singapore, Kent Ridge 119228, Singapore
| | - Yew Koon Lim
- Department of Surgery, National University of Singapore, Kent Ridge 119228, Singapore
| | - Lee Ting Ong
- Department of Surgery, National University of Singapore, Kent Ridge 119228, Singapore
| | - Kah Ying Wong
- Department of Surgery, National University of Singapore, Kent Ridge 119228, Singapore
| | - Edmund Chiong
- Department of Surgery, National University of Singapore, Kent Ridge 119228, Singapore; Department of Urology, National University Hospital, Kent Ridge 119074, Singapore
| | - En-Tang Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge 117585, Singapore
| | - Koon Gee Neoh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge 117585, Singapore.
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Kavcic N, Peric I, Zagorac A, Kokalj Vokac N. Clinical Evaluation of Two Non-Invasive Genetic Tests for Detection and Monitoring of Urothelial Carcinoma: Validation of UroVysion and Xpert Bladder Cancer Detection Test. Front Genet 2022; 13:839598. [PMID: 35734425 PMCID: PMC9208547 DOI: 10.3389/fgene.2022.839598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 04/25/2022] [Indexed: 11/23/2022] Open
Abstract
A variety of commercially available urinary molecular markers have been introduced for detecting and monitoring urothelial carcinoma (UC). We prospectively evaluated the UroVysionTM Bladder Cancer Kit (FISH) and the Xpert® Bladder Cancer Detection (Xpert) test. Both tests were performed on voided urine samples after negative cystoscopy and negative abdominal ultrasound (US) and/or negative computed tomography urography (CTU). Urine specimens from 156 patients diagnosed with hematuria and suspected of having UC and 48 patients followed up after treatment of UC were analyzed using FISH and Xpert. Among 204 patients, 20 had UC, 11 located in the bladder, six in the ureter, and three in the renal pelvis. FISH had an overall sensitivity (SN) of 78%, a specificity (SP) of 93%, and a negative predictive value (NPV) of 96%. Xpert had an overall SN of 90%, an SP of 85%, and an NPV of 98%. Both tests had high SN, SP, and NPV. The SP of FISH was significantly higher. By using FISH and Xpert in addition to cystoscopy, renal and bladder US, and/or CTU in the diagnostic workup of patients with hematuria and follow-up after transurethral resection of the bladder (TURB), a substantial number of patients (10%) otherwise missed were discovered to have UC.
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Affiliation(s)
- Niko Kavcic
- Department of Urology, University Medical Centre Maribor, Maribor, Slovenia
- *Correspondence: Niko Kavcic,
| | - Ivan Peric
- Department of Urology, University Medical Centre Maribor, Maribor, Slovenia
| | - Andreja Zagorac
- Laboratory of Medical Genetics, University Medical Centre Maribor, Maribor, Slovenia
| | - Nadja Kokalj Vokac
- Laboratory of Medical Genetics, University Medical Centre Maribor, Maribor, Slovenia
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9
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Allison DB, Zhang ML, Vohra P, VandenBussche CJ. The Diagnostic Dilemma of Urothelial Tissue Fragments in Urinary Tract Cytology Specimens. Diagnostics (Basel) 2022; 12:diagnostics12040931. [PMID: 35453979 PMCID: PMC9025489 DOI: 10.3390/diagnostics12040931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
Since the release of The Paris System for Reporting Urinary Cytology (TPS), the assessment of urine cytology specimens has primarily focused on the detection of high-grade urothelial carcinoma (HGUC) and carcinoma in situ (CIS). Fortunately, the malignant cells in these lesions tend to be loosely cohesive, resulting in the natural exfoliation of individual malignant cells into the urine. However, HGUC/CIS lesions occasionally exfoliate larger fragments which can be difficult to assess due to cellular overlap and fragment three-dimensionality. Furthermore, reactive benign urothelial fragments and fragments from low-grade urothelial neoplasms (LGUN) may also be seen in urine specimens and contain atypical cytomorphologic features. As a result, the significance of urothelial tissue fragments (UTFs) is often unclear. Herein, we discuss the literature on UTFs before and after the implementation of TPS, as well as strategies to help overcome this diagnostic challenge.
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Affiliation(s)
- Derek B. Allison
- Department of Pathology and Laboratory Medicine, Lexington, KY 40536, USA;
- Department of Urology, University of Kentucky College of Medicine, Lexington, KY 40536, USA
| | - M. Lisa Zhang
- Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA;
| | - Poonam Vohra
- Departments of Pathology and Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143, USA;
| | - Christopher J. VandenBussche
- Departments of Pathology and Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Correspondence: ; Tel.: +1-410-955-1180
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10
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Eun SJ, Kim J, Kim KH. Applications of artificial intelligence in urological setting: a hopeful path to improved care. J Exerc Rehabil 2021; 17:308-312. [PMID: 34805018 PMCID: PMC8566099 DOI: 10.12965/jer.2142596.298] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 10/10/2021] [Indexed: 11/22/2022] Open
Abstract
Artificial intelligence (AI) has been introduced in urology research and practice. Application of AI leads to better accuracy of disease diagnosis and predictive model for monitoring of responses to medical treatments. This mini-review article aims to summarize current applications and development of AI in urology setting, in particular for diagnosis and treatment of urological diseases. This review will introduce that machine learning algorithm-based models will enhance the prediction accuracy for various bladder diseases including interstitial cystitis, bladder cancer, and reproductive urology.
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Affiliation(s)
- Sung-Jong Eun
- Digital Health Industry Team, National IT Industry Promotion Agency, Jincheon, Korea
| | - Jayoung Kim
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Khae Hawn Kim
- Department of Urology, Chungnam National University Sejong Hospital, Chungnam National University School of Medicine, Sejong, Korea
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11
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Improvement of the Collection, Maintenance, and Analysis of Neoplastic Cells from Urine Specimens with the Use of CytoMatrix. Methods Protoc 2021; 4:mps4030065. [PMID: 34564311 PMCID: PMC8482097 DOI: 10.3390/mps4030065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 11/16/2022] Open
Abstract
Urine cytology is a non-invasive test used in combination with cystoscopy for screening and follow-up of urothelial carcinoma (UC). Although cytology can be used to efficiently identify high-grade UC, it has a lower accuracy for the diagnosis of low-grade UC or patients with presence of atypical urothelial cells (AUC). For these reasons, ancillary tests have been added to urine cytology in order to improve the accuracy. However, the poor abundance of neoplastic cells in most samples and the absence of a "tissue-like" structure remains a major challenge. We used a novel synthetic support called CytoMatrix which has the property of capturing and storing cells and micro-macro aggregates within its three-dimensional structure. The urine specimens were obtained from 12 patients: 6 with suspected urothelial neoplasia (low- and high-grade) and 6 with AUC or non-neoplastic samples. The first step is the urine samples preparation, through several centrifugation passages; the second step consists in absorbing cells on the CytoMatrix, and in the subsequent formalin fixation, standard processing and paraffin embedding to prepare FFPE-CytoMatrix block. In the final step, sections are consecutively cut, stained with hematoxylin-eosin (H&E), and analyzed via UroVysion FISH and immunohistochemistry (IHC). Using our simple and reliable protocol, we can improve the quality of urine specimens, allowing a better collection, maintenance, and analysis of cells, with the advantage of using ancillary tests to support cytological diagnosis and the advantage of storing cellular material in a FFPE-CytoMatrix block.
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Bansal S, Pathuthara S, Joseph S, Dighe S, Menon S, Desai SB. Is Diagnosis of Low-Grade Urothelial Carcinoma Possible in Urine Cytology? J Cytol 2021; 38:64-68. [PMID: 34321771 PMCID: PMC8280861 DOI: 10.4103/joc.joc_193_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 12/25/2019] [Accepted: 04/05/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Urine cytology is a useful modality, primarily for the diagnosis and follow-up surveillance of high-grade urothelial carcinoma (HGUC). Its utility in diagnosing low-grade urothelial carcinoma (LGUC) remains controversial because of low reported sensitivity compared to cystoscopy. Aim: To study the cytomorphology of LGUC in voided urine samples and analyze its utility in diagnosis. Materials and Methods: This is a retrospective study of one year, including 48 voided urine samples in cases which were confirmed as LGUC on subsequent histology. Urine cytology smears of these cases, originally stained with Papanicolaou stain were reviewed, critically analyzed and the specific cytomorphologic and cystoscopic findings were documented. Results: On review 18 samples were re-categorized as LGUC which included 10 samples initially diagnosed as Negative for HGUC, 2 as Atypical Urothelial Cells – Not Otherwise Specified (AUC-NOS) and 6 as Suspicious for Carcinoma. In addition, another 3 samples with initial diagnosis of LGUC remained as LGUC on review. Thus, a total of 21 LGUC samples were identified after the review. 26 (54%) samples with a diagnosis of negative for HGUC remained negative even after review, as the tumor cells were not identified either due to sampling error or unrecognizable morphology. One (2%) samples of AUC-NOS remained the same on review due to very scant atypical cells. In 21 LGUC samples, cytology showed a dual population of benign differentiated urothelial cells and small urothelial cells with subtle nuclear atypia such as irregular and thickened nuclear membrane with increased nuclear cytoplasmic ratio. In 12 false negative LGUC samples, the diagnostic cells were camouflaged by their subtle nuclear atypia coupled with an overwhelming background of differentiated benign urothelial cells as both appeared almost similar in morphology. Papillary fragments were identified only in 2 samples. Conclusions: Diagnosis of LGUC on cytology is challenging and depends on the presence of diagnostic cells, pick up of diagnostic cells on screening and accurate interpretation. Special attention to papillary fragments and aforementioned nuclear atypia should be paid as tumor cells may resemble normal urothelial cells and can be easily missed.
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Affiliation(s)
- Saloni Bansal
- Department of Cytopathology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Saleem Pathuthara
- Department of Cytopathology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Santhosh Joseph
- Department of Cytopathology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Swati Dighe
- Department of Cytopathology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Santosh Menon
- Department of Pathology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Sangeeta B Desai
- Department of Pathology, Tata Memorial Centre, Mumbai, Maharashtra, India
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Chandler JB, Colunga M, Celli R, Lithgow MY, Baldassarri RJ. Applicability of the Paris System for veterans: high rates of undiagnosed low-grade urothelial neoplasia. J Am Soc Cytopathol 2021; 10:357-365. [PMID: 33849782 DOI: 10.1016/j.jasc.2021.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/28/2021] [Accepted: 02/15/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND The Paris System for Reporting Urinary Cytology (TPS) is a recently developed standardized terminology system. It is well-established that urine cytology has low sensitivity for detecting low-grade urothelial neoplasia (LGUN). Though the majority of tumors are low-grade, surveillance of these lesions is important to monitor for possible progression. Herein, we compared TPS to our veteran integrated system network (VISN) to assess its applicability. We also introduced semi-quantitative scoring to further evaluate cytomorphologic features of high-grade urothelial carcinoma (HGUC). MATERIALS AND METHODS Voided and instrumented urine cytology specimens and concurrent biopsies were reviewed from Sept 2018 - Jan 2020. Cytologic diagnoses reported using the VISN institutional system were reevaluated by staff cytopathologists and categorized according to TPS. A semi-quantitative scoring system to evaluate cytomorphologic features was devised. RESULTS Cytology and surgical specimens from 105 patients were reviewed. The VISN and TPS reporting systems were compared and showed similar sensitivities and specificities for the detection of HGUC. Rates of biopsy-proven LGUN were high for the negative for high-grade urothelial carcinoma category (NHGUC; 27/53, 50.9%) and atypical urothelial cells (AUC; 14/30; 46.7%) compared to suspicious/positive (0/22, 0%) categories. Major and minor criteria as outlined in TPS were evaluated semi-quantitatively. CONCLUSIONS Urine cytology has limited sensitivity for LGUN regardless of the cytologic reporting system used. There was a high rate of LGUN following NHGUC/AUC diagnoses in the Veteran population. Coarse chromatin was determined to be the least sensitive criterion for the detection of high-grade lesions and irregular chromatin rim was most specific.
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Affiliation(s)
- Jocelyn B Chandler
- Department of Pathology, VA Connecticut Healthcare System, West Haven, Connecticut; Department of Pathology, Yale University School of Medicine, New Haven, Connecticut.
| | - Monica Colunga
- Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut
| | - Romulo Celli
- Department of Pathology, Middlesex Health, Middletown, Connecticut
| | - Marie Y Lithgow
- Department of Pathology, VA Boston Healthcare System, West Roxbury, Massachusetts
| | - Rebecca J Baldassarri
- Department of Pathology, VA Connecticut Healthcare System, West Haven, Connecticut; Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
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Satturwar S, Pantanowitz L. Architectural aspects of cell-blocks as small biopsies. Cytojournal 2021; 18:5. [PMID: 33880128 PMCID: PMC8053489 DOI: 10.25259/cytojournal_4_2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 01/01/2023] Open
Abstract
Cell-block preparations have become an essential part of integrated cytology diagnosis. They are essentially microbiopsies that are formalin fixed and embedded in paraffin. This has become more prevalent with greater sample procurement due to the advent of newer biopsy techniques and needles. Cell-blocks allow retrieval of small tissue fragments from cytology specimens that sometimes cannot be processed by alternate cytologic techniques. They represent concentrated, cell-enriched preparations that provide cytologists with the opportunity to evaluate cellular architecture, as well as to perform ancillary testing. A cell-block compatible sample may thus obviate the need for a more invasive procedure such as a tissue biopsy. Microscopic examination of cell-blocks is quick, avoids obscuring material, permits cells to be evaluated in one focal plane, and allows the histologic architecture such as glandular differentiation, papillary formations, and sometimes invasion to be easily identified. This new era of “cytohistology” accordingly requires practicing cytologists to become more familiar with histopathology. This review article discusses the benefit of various architectural patterns identifiable in cell-blocks employed as an adjunct to Pap tests, exfoliative fluid specimens, and fine-needle aspirations.
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Affiliation(s)
- Swati Satturwar
- Department of Pathology, University of Pittsburgh Medical Center, Pennsylvania, United States
| | - Liron Pantanowitz
- Department of Pathology, University of Michigan, Michigan, United States
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The Usefulness of 4 Immunoperoxidase Stains Applied to Urinary Cytology Samples in the Pathologic Stage of Urothelial Carcinoma: A Study With Histologic Correlation. Appl Immunohistochem Mol Morphol 2021; 29:422-432. [PMID: 33480604 DOI: 10.1097/pai.0000000000000905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/20/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Currently, the golden rule for the diagnosis of urothelial carcinoma is biopsy and cystoscopy, unfortionally both are costly, invasive, and uncomfortable. While most urothelial cancers are noninvasive at presentation, it is necessary to find a highly sensitive, noninvasive way to diagnose in its earlier stages, Cytology with immunostaining is a noninvasive, reliable method that might play a role in detecting the earlier stages before its progression and accurate correlation with different stages of these tumors. AIM This study aimed to reach an accurate level in the staging of urothelial carcinoma using CD44, ProExC, Laminin, and Fascin on urinary cytology. DESIGN We include a total of 180 urinary cytology specimens with their surgical biopsies' counterparts, the staging of the surgical specimens were done according to AJCC2017TNM classification, while their counterpart urinary samples were centrifuged and the sediment was used for H&E and immunocytochemical staining with CD44, ProExC, Laminin, and Fascin. RESULTS The diagnosis of Ta-stage tumors was done according to the following immunohistochemical (IHC) profile [positive (+ve) CD44, negative (-ve) proExC, -ve Laminin, and -ve Fascin] with 100% sensitivity, 100% specificity. The diagnosis of Tis stage tumors was done according to IHC profile [-ve CD44, +ve proExC, -ve Laminin, and -ve Fascin] with 100% sensitivity, 93% specificity. The diagnosis of T1 stage tumors according to IHC profile [-ve CD44, +ve proExC, +ve Laminin, and -ve Fascin] with 100% sensitivity, 97% specificity, The diagnosis of T2 and T3 stage tumors was done according to IHC profile [-ve CD44, +ve proExC, +ve Laminin and weak to moderate +ve Fascin] with 100% sensitivity, 92% specificity, while the diagnosis of T4 stage tumors according to the IHC profile [-ve CD44, +ve proExC, +ve Laminin, and intense +ve Fascin] with 100% sensitivity, 100% specificity. CONCLUSION Using (CD44, ProExC, Laminin, and Fascin) on urinary cytology is a simple, reliable, and noninvasive method for the staging of urothelial carcinoma with 99% total accuracy.
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Pastorello RG, Barkan GA, Saieg M. Experience on the use of The Paris System for Reporting Urinary Cytopathology: review of the published literature. J Am Soc Cytopathol 2020; 10:79-87. [PMID: 33160893 DOI: 10.1016/j.jasc.2020.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 12/15/2022]
Abstract
INTRODUCTION The Paris System for Reporting Urinary Cytology (TPS) was first published in 2016 with clear objectives to standardize cytologic diagnostic criteria and provide uniform reporting, in order to improve patient stratification and associated clinical management. The aim of this paper is to evaluate the performance of TPS and review the literature published since TPS was introduced. MATERIALS AND METHODS Original articles focusing on the utilization and performance of TPS in urinary cytology specimens were identified using PubMed for publications from January 2016 to July 2020, using the keywords "Paris System", "urine cytology", and "urinary cytology". RESULTS Twenty-three relevant articles in the literature regarding the use of TPS were included in the review from a total of 30,802 urine cytology specimens, of which 21,485 (69.8%) had available diagnoses. Distribution of cases among categories ranged from 50.5% to 95.3% for negative for high-grade urothelial carcinoma (NHGUC), 1.2% to 23% for atypical urothelial cells (AUC), 0.2% to 6.6% for suspicious for high-grade urothelial carcinomas (SHGUC), and 2.2% to 14.1% for high-grade urothelial carcinomas (HGUC). The calculated risk of high-grade malignancy (ROHM) ranged from 8.7% to 36.8% for NHGUC, 12.3% to 60.9%% for AUC, 33.3% to 100% for SHGUC, and 58.8% to 100% for HGUC. Mean ROHM weighted by sample size was calculated at 15.7% (±7.8%), 38.5% (±14.3%), 76.2% (±17.2%), and 88.8% (±12.7%) for NHGUC, AUC, SHGUC, and HGUC, respectively. Reported sensitivity of TPS ranged from 40% to 84.7%, specificity from 73% to 100%, PPV from 62.3% to 100%, and NPV from 46% to 90%. CONCLUSIONS The application of TPS in the selected series has improved the screening and surveillance potential of urine cytology, while reducing high rates of indeterminate diagnoses, improving sensitivity and providing proper risk stratification for patients.
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Affiliation(s)
- Ricardo G Pastorello
- Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts; Breast Oncology Program, Dana-Farber/Brigham and Women's Cancer Center, Boston, Massachusetts
| | - Güliz A Barkan
- Department of Pathology and Laboratory Medicine, Loyola University Healthcare System, Maywood, Illinois; Department of Urology, Loyola University Healthcare System, Maywood, Illinois
| | - Mauro Saieg
- Department of Pathology, A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Santa Casa Medical School, São Paulo, Brazil.
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Zhang Z, Fu X, Liu J, Huang Z, Liu N, Fang F, Rao J. Developing a Machine Learning Algorithm for Identifying Abnormal Urothelial Cells: A Feasibility Study. Acta Cytol 2020; 65:335-341. [PMID: 33022673 DOI: 10.1159/000510474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Urine cytology plays an important role in diagnosing urothelial carcinoma (UC). However, urine cytology interpretation is subjective and difficult. Morphogo (ALAB, Boston, MA, USA), equipped with automatic acquisition and scanning, optical focusing, and automatic classification with convolutional neural network has been developed for bone marrow aspirate smear analysis of hematopoietic diseases. The goal of this preliminary study was to determine the feasibility of developing a machine learning algorithm on Morphogo for identifying abnormal urothelial cells in urine cytology slides. METHODS Thirty-seven achieved abnormal urine cytology slides from cases with the diagnosis of atypical urothelial cells and above (suspicions or positive for UC) were obtained from 1 hospital. A pathologist (J.R.) reviewed the slides and manually selected and annotated representative cells to feed into Morphogo with following categories: benign (urothelial cells, squamous cells, degenerated cells, and inflammatory cells), atypical cells, and suspicious cells. Initial validation of the algorithm was performed on a subset of the original 37 cases. Urine samples from additional 12 unknown cases with various histological diagnoses (6 cases of high-grade urothelial carcinoma (HGUC), 1 case of low-grade urothelial carcinoma (LGUC), 1 case of prostate adenocarcinoma, 1 case of renal cell carcinoma, and 4 cases of non-neoplastic conditions) were collected from another hospital for initial blind testing. RESULTS A total of 1,910 benign and 1,978 abnormal (atypical and suspicious) cells from 37 slides were annotated for developing and training of the algorithm. This algorithm was validated on 27 slides that resulted in identification of at least 1 abnormal cell per slide, with a total of 200 abnormal cells, and an average of 7.4 cells per slide. Of the 12 unknown cases tested, the original cytology was positive for tumor cells in 2 HGUC samples. Morphogo was abnormal (atypical or suspicious) for 6 samples from patients with UC, including one with LGUC and one with prostate adenocarcinoma. CONCLUSION Morphogo machine learning algorithm is capable of identifying abnormal urothelial cells. Further validation studies with a larger number of urine samples will be needed to determine if it can be used to assist the cytological diagnosis of UC.
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Affiliation(s)
- Zhihui Zhang
- Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences (CHCAMS), Beijing, China
| | - Xinyan Fu
- Division of Medical Technology Development, Hangzhou Zhiwei Information & Technology Ltd., Hangzhou, Hangzhou, China
| | - Jiwei Liu
- Department of Oncology, The First Hospital of Dalian Medical University (FHDMU), Dalian, China
| | - Zhen Huang
- Division of Medical Technology Development, Hangzhou Zhiwei Information & Technology Ltd., Hangzhou, Hangzhou, China
| | - Natalia Liu
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Fengqi Fang
- Department of Oncology, The First Hospital of Dalian Medical University (FHDMU), Dalian, China
| | - Jianyu Rao
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA,
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Wilson BL, Russell D, Evans SK, Agrawal T. Cell blocks in urine cytopathology: do they add value to the diagnosis? A pilot study. J Am Soc Cytopathol 2020; 10:47-55. [PMID: 33039333 DOI: 10.1016/j.jasc.2020.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/21/2020] [Accepted: 08/07/2020] [Indexed: 12/17/2022]
Abstract
INTRODUCTION The utility of cell block (CB) preparation is well established in cytopathology. Despite 23.3% of College of American Pathologists-accredited laboratories using CB with liquid-based preparations on urine cytology (UC) cases, there are very few studies on their performance. To determine their usefulness, we conducted a retrospective review of UC cases that received CB. MATERIALS AND METHODS We identified 27 UC cases with ThinPrep (TP) and CB preparation between 2016 and 2020 at our institution. Clinical history and follow-up data were compiled. A blinded review of TP alone, and TP together with CB, was performed by 2 pathologists and 2 cytotechnologists. Diagnoses were rendered in accordance with The Paris System for Reporting Urine Cytology. RESULTS Blood and acute inflammation were common background elements in cases that received CB preparation. In total, CB upgraded the diagnosis in 7 of 27 cases (26%). The maximum utility of CB preparation was seen in indeterminate cases where 60% (6 of 10) were upgraded, including 71% (5 of 7) of atypical urothelial cells (AUC) and 30% (1 of 3) of suspicious for high-grade urothelial carcinoma (HGUC). One case (1 of 12, 8%) diagnosed as negative for HGUC on TP was diagnosed as low-grade urothelial neoplasia on CB. CONCLUSIONS Our results demonstrate that adjunct use of CB preparation aids in a definitive diagnosis on AUC category and may be helpful in cases with cell clusters or tissue fragments, or cases suspicious for HGUC. Further correlation studies are warranted in this area to expand our knowledge about the utility of CBs in urine cytology.
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Affiliation(s)
- Bennett L Wilson
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center (URMC), Rochester, New York
| | - Donna Russell
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center (URMC), Rochester, New York
| | - Shawn K Evans
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center (URMC), Rochester, New York
| | - Tanupriya Agrawal
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center (URMC), Rochester, New York.
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Choi SY, Kim KH, Suh KS, Yeo MK. Diagnostic significance of dual immunocytochemical staining of p53/cytokeratin20 on liquid-based urine cytology to detect urothelial carcinoma. Cytojournal 2020; 17:3. [PMID: 32256669 PMCID: PMC7111538 DOI: 10.25259/cytojournal_88_2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 08/28/2019] [Indexed: 11/12/2022] Open
Abstract
Background: Urine cytology is a noninvasive and inexpensive method; however, it is limited in low sensitivity for detecting and monitoring urothelial carcinoma (UC). To overcome limitation of cytology, several tests using urine samples have been attempted that immunocytochemical staining is an inexpensive and easy to perform ancillary technique. Dual immunocytochemical staining for p53 and cytokeratin 20 (CK20) is assessed in liquid-based urine cytology slides. Materials and Methods: Liquid-based urine cytology samples collected between 2008 and 2013 and matched follow-up biopsy samples of high-grade UC (HGUC) (n = 44) and low-grade UC (LGUC) (n = 14) were analyzed. Results: Urine cytology showing atypical cells was subjected to dual-color immunostaining for p53 and CK20. The sensitivity of urine cytology combined with p53 and CK20 immunostaining was 77.3% in HGUC and 52.9% in LGUC. Of 20 cases diagnosed with atypia by urine cytology, 13 (65%) were positive for p53 or CK20. Dual immunocytochemical staining for p53/CK20 improved the diagnostic accuracy of urine cytology. Conclusions: The present results indicate that cytomorphology combined with p53/CK20 immunostaining is useful for the detection of HGUC and LGUC.
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Affiliation(s)
- Song-Yi Choi
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Kyung-Hee Kim
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Kwang-Sun Suh
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Min-Kyung Yeo
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, Republic of Korea
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20
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A noninvasive urine-based methylation biomarker panel to detect bladder cancer and discriminate cancer grade. Urol Oncol 2020; 38:603.e1-603.e7. [PMID: 32081560 DOI: 10.1016/j.urolonc.2020.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Highly sensitive and specific urinary biomarkers for the early detection of bladder cancer (BC) to improve the performance of urinary cytology are needed. OBJECTIVE To investigate the usefulness of methylation markers in voided urine to identify BC presence and grade. DESIGN, SETTINGS, AND PARTICIPANTS Using genome-wide methylation strategies in Toronto, Canada and Liège, Belgium, we have identified differentially methylated genes (TWIST1, RUNX3, GATA4, NID2, and FOXE1) in low-grade vs. high-grade BC tissue and urine. We accrued urine samples from 313 patients using a 2:1 ratio in a case-control setting from Toronto, Canada, Halifax, Canada, and Zurich, Switzerland. We studied the usefulness of these 5 methylated genes to identify BC and discriminate cancer grade in voided urine specimens. Urinary cell sediment DNA was evaluated using qPCR-based MethyLight assay. Multivariable logistic regression prediction models were created. RESULTS AND LIMITATIONS We included 211 BC patients (180 nonmuscle invasive) and 102 controls. In univariate analyses, all methylated genes significantly predicted BC vs. no BC, and high grade vs. low grade (all P < 0.05). In multivariable analysis, NID2, TWIST1, and age were independent predictors of BC (all P < 0.05). Sensitivity of NID2 and TWIST1 to predict BC and BC grade was 76.2% and 77.6%, respectively, whereas specificity was 83.3% and 61.1%, respectively. Multivariable models predicting BC overall and discriminating between high-grade and low-grade BC reached area under the receiver operating characteristics curves of 0.89 and 0.78, respectively. CONCLUSIONS This multi-centric study in a real life scenario (different countries, techniques, and pathologists) supports the promise of epigenetic urinary markers in noninvasively detecting BC. With sensitivities and specificities in the range of 80%, the overall performance characteristics of this panel of methylated genes probably does not allow such signature to significantly alter clinical care at this stage but is worth further studying for instance in BC surveillance or screening in high-risk populations.
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Sheridan TB, Walavalkar V, Yates JK, Owens CL, Fischer AH. Cytologic processing of ureteral microbiopsies is associated with higher sensitivity for detection of urothelial carcinoma compared with conventional biopsy processing. J Am Soc Cytopathol 2020; 9:26-32. [PMID: 31564532 DOI: 10.1016/j.jasc.2019.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Because of the high rates of false-negative or nondiagnostic ureteral Piranha microbiopsies associated with low cellularity, we assessed the effect of processing these using cytology. MATERIALS AND METHODS We included 2 groups of 44 consecutive microbiopsies processed from formalin as a standard surgical biopsy and 22 processed by cytology. All samples were from the ureter or renal pelvis or calyx. The cytology samples were collected in alcohol-based media and were prepared with a Cellient cell block only (n = 9) or with a Cellient cell block for the visible particles, together with ThinPrep, to capture the remaining desquamated cells (n = 13). RESULTS Malignancy was diagnosed in 5 of 44 conventionally processed microbiopsies (11%) compared with 14 of 22 cytologically processed microbiopsies (64%; P < 0.001), including 1 case with invasion. Nineteen site-matched biopsies from 2 patients had undergone both cytologic and surgical processing, with 8 of 8 cytologically processed biopsies diagnosed as malignant. None of the 11 surgically processed biopsies from the same patients matched for site were diagnosed as malignant. Of the 11, 2 (18%) were suspicious for high-grade urothelial carcinoma and 6 (55%) were considered atypical. Increased sensitivity from cytologic processing appears related to increased cell recovery; large numbers of well-preserved urothelial cells were identified in the ThinPrep (range, 1000-25,000 cells/slide), and a nonsignificant trend was found toward increased urothelium (defined as >200 cells/profile) in the Cellient cell blocks (14 of 22 [64%]) compared with the histologic biopsies (17 of 44 [39%]; P = 0.070). CONCLUSIONS Cytologic processing of ureteral microbiopsies showed superior sensitivity for detecting high-grade urothelial carcinoma, apparently owing to the increased cellular recovery.
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Affiliation(s)
- Todd B Sheridan
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, Massachusetts
| | - Vighnesh Walavalkar
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - Jennifer K Yates
- Department of Urology, University of Massachusetts Memorial Health Care, Worcester, Massachusetts
| | - Christopher L Owens
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, Massachusetts
| | - Andrew H Fischer
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, Massachusetts.
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Paula R, Oliveira A, Nunes W, Bovolim G, Domingos T, De Brot L, Bezerra S, Cunha I, Morini M, Saieg M. Two‐year study on the application of the Paris system for urinary cytology in a cancer centre. Cytopathology 2019; 31:41-46. [DOI: 10.1111/cyt.12780] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/26/2019] [Accepted: 10/22/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Rafaela Paula
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
| | - Andrea Oliveira
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
| | - Warley Nunes
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
| | - Graziele Bovolim
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
| | - Tabata Domingos
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
| | - Louise De Brot
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
| | | | - Isabela Cunha
- Department of PathologyRede D'OR‐ São Luiz São Paulo Brazil
| | - Mariane Morini
- Department of PathologyRede D'OR‐ São Luiz São Paulo Brazil
| | - Mauro Saieg
- Department of PathologyAC Camargo Cancer Center São Paulo Brazil
- Department of PathologySanta Casa Medical School São Paulo Brazil
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Wang X, Gu Y, Zhang S, Li G, Liu T, Wang T, Qin H, Jiang B, Zhu L, Li Y, Lei H, Li M, Zhang Q, Yang R, Fang F, Guo H. Unbiased enrichment of urine exfoliated cells on nanostructured substrates for sensitive detection of urothelial tumor cells. Cancer Med 2019; 9:290-301. [PMID: 31709750 PMCID: PMC6943141 DOI: 10.1002/cam4.2655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 12/19/2022] Open
Abstract
Background Early detection of urothelial carcinoma (UC) by noninvasive diagnostic methods with high accuracy is still underscored. This study aimed to develop a noninvasive assay incorporating both enrichment of urine exfoliated cells and immunoassays for UC detection. Methods Polystyrene dishes were exposed to oxygen plasma and modified with 3‐aminopropyltriethoxysilane to prepare amine‐functionalized nanostructured substrates (NS). Performance characterization of NS was evaluated by atomic force microscope and X‐ray photoelectron spectroscopy. Urine exfoliated cells were captured by NS and then immunostained to detect urinary tumor cells (UTCs), which was called UTC assay. The receiver operating characteristic (ROC) curve, area under ROC curve (AUC), and Youden index were used to find the cutoff value of UTC assay. ROC analysis and McNemar test were used to compare the diagnostic accuracy of UTC assay with cytology. Kappa test was used to analyze the agreement of UTC assay and cytology with pathological diagnosis. Results Nanostructured substrates had good cell binding yields of nucleated cells and tumor cells. CK20+CD45−CD11b− cells were considered as UTCs. UTC number ≥ 1 per sample could be considered as a positive result. By AUC and Kappa analysis, UTC assay showed good performance in UC detection. McNemar test demonstrated that UTC assay had a superior sensitivity even in low‐grade subgroup and a similar specificity compared to cytology in UC diagnosis. Conclusions Nanostructured substrates could be used to enrich the exfoliated cells from urine samples. UTC assay with NS has the potential to play a role in UC detection. The value of this assay still needs additional validation by large, multi‐center studies.
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Affiliation(s)
- Xin Wang
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Yuanyuan Gu
- PerMed Biomedicine Institute, Shanghai, China
| | - Shiwei Zhang
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Gangqiang Li
- Department of Pathology, Naval Characteristic Medical Center, Shanghai, China
| | - Tianyao Liu
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Tianwei Wang
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Haixiang Qin
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Bo Jiang
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Lin Zhu
- PerMed Biomedicine Institute, Shanghai, China
| | - Yajun Li
- PerMed Biomedicine Institute, Shanghai, China
| | - Haozhi Lei
- PerMed Biomedicine Institute, Shanghai, China
| | - Ming Li
- Department of Pathology, The Affiliated Suzhou Municipal Hospital of Nanjing Medical University, Suzhou, China
| | - Qun Zhang
- PerMed Biomedicine Institute, Shanghai, China
| | - Rong Yang
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
| | - Feng Fang
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Hongqian Guo
- Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing University, Nanjing, China
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Clinical performance of Xpert Bladder Cancer (BC) Monitor, a mRNA-based urine test, in active surveillance (AS) patients with recurrent non-muscle-invasive bladder cancer (NMIBC): results from the Bladder Cancer Italian Active Surveillance (BIAS) project. World J Urol 2019; 38:2215-2220. [PMID: 31691083 DOI: 10.1007/s00345-019-03002-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 10/28/2019] [Indexed: 10/25/2022] Open
Abstract
PURPOSE To investigate the clinical performance of a new mRNA-based urine test, aiming to avoid unnecessary follow-up cystoscopy in patients under active surveillance (AS) for recurrent NMIBC. METHODS This is a prospective cohort study enrolling patients with history of low-grade (LG) NMIBC, who developed a recurrence during the follow-up and underwent AS. Their urinary samples were analyzed by Xpert BC Monitor (Cepheid, Sunnyvale, CA, USA). The primary endpoint was to investigate if Xpert BC Monitor could avoid unnecessary cystoscopy during the follow-up period. Its sensitivity, specificity, PPVs and NPVs were calculated. A cutoff of 0.4 "linear discriminant analysis" (LDA) was optimized for the AS setting. RESULTS The cohort consisted of 106 patients with a mean age of 72 ± 9.52 and a median follow-up from AS start of 8.8 (range 0-56.5) months. No statistically significant difference was found for the mean age, smoker status, lesion size, and number of lesions with a cutoff of 0.4. Of 106 patients, 22 (20.8%) were deemed to require treatment because of cystoscopic changes in size and/or number of lesions during the follow-up period. Using a cutoff value of < 0.4, 34 (33.7%) cystoscopies could be avoided due to low LDA value, missing 2/22 (9%) failures, none with high-grade (HG) NMIBC. Further research on larger population remains mandatory before its clinical use. CONCLUSION Xpert BC Monitor seems to be a reliable assay, which might avoid unnecessary cystoscopies without missing HG NMIBC when its cutoff is optimized for the AS setting.
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Sanghvi AB, Allen EZ, Callenberg KM, Pantanowitz L. Performance of an artificial intelligence algorithm for reporting urine cytopathology. Cancer Cytopathol 2019; 127:658-666. [PMID: 31412169 DOI: 10.1002/cncy.22176] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 04/29/2019] [Accepted: 05/21/2019] [Indexed: 11/06/2022]
Abstract
BACKGROUND Unlike Papanicolaou tests, there are no commercially available computer-assisted automated screening systems for urine specimens. Despite The Paris System for Reporting Urinary Cytology, there still is poor interobserver agreement with urine cytology and many cases in which a definitive diagnosis cannot be made. In the current study, the authors have reported on the development of an image algorithm that applies computational methods to digitized liquid-based urine cytology slides. METHODS A total of 2405 archival ThinPrep glass slides, including voided and instrumented urine cytology cases, were digitized. A deep learning computational pipeline with multiple tiers of convolutional neural network models was developed for processing whole slide images (WSIs) and predicting diagnoses. The algorithm was validated using a separate test data set comprised of consecutive cases encountered in routine clinical practice. RESULTS There were 1.9 million urothelial cells analyzed. An average of 5400 urothelial cells were identified in each WSI. The algorithm achieved an area under the curve of 0.88 (95% CI, 0.83-0.93). Using the optimal operating point, the algorithm's sensitivity was 79.5% (95% CI, 64.7%-90.2%) and the specificity was 84.5% (95% CI, 81.6%-87.1%) for high-grade urothelial carcinoma. CONCLUSIONS The authors successfully developed a computational algorithm capable of accurately analyzing WSIs of urine cytology cases. Compared with prior studies, this effort used a much larger data set, exploited whole slide-level and not just cell-level features, and used a cell gallery to display the algorithm's output for easy end-user review. This algorithm provides computer-assisted interpretation of urine cytology cases, akin to the machine learning technology currently used for automated Papanicolaou test screening.
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Affiliation(s)
| | | | | | - Liron Pantanowitz
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Allison DB, VandenBussche CJ. A Review of Urine Ancillary Tests in the Era of the Paris System. Acta Cytol 2019; 64:182-192. [PMID: 31060038 DOI: 10.1159/000499027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/19/2019] [Indexed: 12/15/2022]
Abstract
Aside from its diagnostic importance, urinary tract endoscopy is an uncomfortable, expensive, and time-consuming procedure. Patients with a history of urothelial carcinoma remain at an increased risk for recurrence and the development of de novo disease; most have had exposure to carcinogenic risk factors for decades prior to their first diagnosis that have bathed the entire urothelial tract. Consequently, monitoring these patients over their lifetime has made urothelial carcinoma one of the most expensive cancers for the US healthcare system. This expense has provided a financial incentive for academic and commercial groups to develop a test with a sufficient negative predictive value to reduce the frequency of surveillance procedures. Slide-based tests require a separate slide prepared from a split urine sample or from an additional urinary tract specimen. This process can place an additional burden on the laboratory due to changes in the workflow, especially if the split specimens need to be stored until a cytologic diagnosis is rendered (i.e., when used as a reflex test). Importantly, slide-based tests allow for the result to be directly correlated with cytomorphologic findings; however, these tests require the cells of interest to be present. Thus, slide-based tests suffer from the same sensitivity issues as urinary tract cytology. In contrast, slide-free tests do not require an additional slide to be prepared, and laboratory testing may be centralized to a core facility or performed on-site. Some tests detect the expression of altered or abnormally expressed subcellular material (proteins, DNA, etc.) in urothelial neoplasms, which are found in tumor cells and/or in the urine specimen when the proteins are either excreted or leaked from degenerating tumor cells. Slide-free tests may also be developed into point-of-care tests, meaning that the result may be available to the urologist but not to the cytopathologist. Since these proteins are often disassociated from the tumor cells that produce them, such tests may have a positive result even if tumor cells are absent in the tested specimen. Here we review critical concepts as well as several ancillary tests that have been developed for urinary tract specimens.
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Affiliation(s)
- Derek B Allison
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Christopher J VandenBussche
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA,
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA,
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Miyake M, Owari T, Hori S, Nakai Y, Fujimoto K. Emerging biomarkers for the diagnosis and monitoring of urothelial carcinoma. Res Rep Urol 2018; 10:251-261. [PMID: 30588457 PMCID: PMC6299471 DOI: 10.2147/rru.s173027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Urothelial carcinoma (UC) arises extensively from the renal pelvis, ureter, urinary bladder, and urethra. UC represents a clinical and social challenge because of its incidence, post-treatment recurrence rate, and prognosis. Combinations of urine cytology, cystoscopy, and conventional imaging such as computed tomography are currently used for diagnosis and monitoring modalities of UC. Both the poor diagnostic accuracy of urine cytology and poor cost performance of cystoscopy and conventional imaging modalities emphasize the urgent need for advancement in clinical guidance for UC. Urine- and blood-based biomarkers for detection of UC of the bladder and upper urinary tract represent a considerable research area. Biomarkers can help to improve UC diagnosis with the aim of replacing cystoscopy and other imaging examinations in future and may enable individualizing risk stratification regarding therapy and follow-up. Over the decades, numerous studies have focused on the potential application of biomarkers for UC, including urine, circulating tumor DNA, RNAs, proteins, and extracellular vesicles. Although some biomarkers such as ImmunoCyt/uCyt+, UroVysion, NMP-22, bladder tumor antigen, CxBladder, and Xpert Bladder Cancer are currently available in clinical practice, few biomarkers achieve high sensitivity and specificity. Emerging biomarkers are continuously developed and reported in medical journals. However, there is a significant lack on following external validation using different cohorts. The positive results are needed to be confirmed by more studies with large-scale cohorts and long follow-up periods to prove the true value of novel biomarkers, followed by their adoption in clinical practice. The present paper provides an overview of the evidence based on high-impact studies regarding urine- and blood-based biomarkers and their clinical applications in bladder cancer and upper tract UC.
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Affiliation(s)
- Makito Miyake
- Department of Urology, Nara Medical University, Kashihara-shi, Nara 634-8522, Japan,
| | - Takuya Owari
- Department of Urology, Nara Medical University, Kashihara-shi, Nara 634-8522, Japan,
| | - Shunta Hori
- Department of Urology, Nara Medical University, Kashihara-shi, Nara 634-8522, Japan,
| | - Yasushi Nakai
- Department of Urology, Nara Medical University, Kashihara-shi, Nara 634-8522, Japan,
| | - Kiyohide Fujimoto
- Department of Urology, Nara Medical University, Kashihara-shi, Nara 634-8522, Japan,
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Rohilla M, Singh P, Rajwanshi A, Gupta N, Srinivasan R, Dey P, Kakkar N. Cytohistological correlation of urine cytology in a tertiary centre with application of the Paris system. Cytopathology 2018; 29:436-443. [DOI: 10.1111/cyt.12604] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Manish Rohilla
- Department of Cytology and Gynaecology Pathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - Priya Singh
- Department of Cytology and Gynaecology Pathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - Arvind Rajwanshi
- Department of Cytology and Gynaecology Pathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - Nalini Gupta
- Department of Cytology and Gynaecology Pathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - Radhika Srinivasan
- Department of Cytology and Gynaecology Pathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - Pranab Dey
- Department of Cytology and Gynaecology Pathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - Nandita Kakkar
- Department of Histopathology; Post Graduate Institute of Medical Education and Research; Chandigarh India
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Kurtycz DFI, Barkan GA, Pavelec DM, Rosenthal DL, Wojcik EM, VandenBussche CJ, Mangiulli K, Olson MT. Paris Interobserver Reproducibility Study (PIRST). J Am Soc Cytopathol 2018; 7:174-184. [PMID: 31043274 DOI: 10.1016/j.jasc.2018.02.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/15/2018] [Accepted: 02/16/2018] [Indexed: 06/09/2023]
Abstract
OBJECTIVES In concert with the 2015 publication of The Paris System for Urinary Cytopathology (TPS), a Web-based interobserver study, co-sponsored by the American Society of Cytopathology (ASC) and International Academy of Cytology (IAC), was performed to determine diagnostic agreement among volunteer participants and with the TPS author consensus. MATERIAL AND METHODS Participants at various levels of training and certification were recruited through national and international cytopathology professional societies. Although the survey was open to all comers, potential participants were screened by two basic cytopathology questions. Information was collected on the level of training, practice patterns, and experience. Study participants evaluated 85 images (previously unpublished) chosen from the TPS atlas. These images spanned all diagnostic categories. RESULTS Of the 1993 attempts to access the survey, 1313 participants correctly answered the qualifying questions and were included in the survey. Respondents were concentrated in the United States, although many participants came from other countries. The majority of respondents were board-certified in anatomic pathology with cytopathology certification. A smaller number were cytotechnologists. Board-certified cytopathologists and specialist cytotechnologists outperformed other certifications. Practice type (academics versus non-academic), and country (US versus international) were not major factors in concordance. Diagnostic categories with the best agreement were Negative for High-Grade Urothelial Carcinoma (NHGUC; 71%), Low-Grade Urothelial Neoplasm (LGUN; 62%), and High-Grade Urothelial Carcinoma (HGUC; 57%). Indeterminate categories showed low concordance. CONCLUSIONS The NHGUC, LGUN, and HGUC were most correlated with diagnostic agreement among observers. This study can serve as a baseline for future comparisons.
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Affiliation(s)
- Daniel F I Kurtycz
- Department of Pathology and Laboratory Medicine and the Wisconsin State Laboratory of Hygiene, University of Wisconsin-Madison, Madison, Wisconsin.
| | - Güliz A Barkan
- Department of Pathology, Loyola University Chicago, Maywood, Illinois
| | - Derek M Pavelec
- Department of Pathology and Laboratory Medicine and the Wisconsin State Laboratory of Hygiene, University of Wisconsin-Madison, Madison, Wisconsin
| | - Dorothy L Rosenthal
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Eva M Wojcik
- Department of Pathology, Loyola University Chicago, Maywood, Illinois
| | | | - Kala Mangiulli
- Department of Pathology, University of Wisconsin-Madison, Madison, Wisconsin
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Allison DB, Sharma R, Cowan ML, VandenBussche CJ. Evaluation of Sienna Cancer Diagnostics hTERT Antibody on 500 Consecutive Urinary Tract Specimens. Acta Cytol 2018; 62:302-310. [PMID: 29874657 DOI: 10.1159/000489181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/12/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Telomerase activity can be detected in up to 90% of urothelial carcinomas (UC). Telomerase activity can also be detected in urinary tract cytology (UTC) specimens and indicate an increased risk of UC. We evaluated the performance of a commercially available antibody that putatively binds the telomerase reverse transcriptase (hTERT) subunit on 500 UTC specimens. STUDY DESIGN Unstained CytospinTM preparations were created from residual urine specimens and were stained using the anti-hTERT antibody (SCD-A7). Two algorithms were developed for concatenating the hTERT result and cytologic diagnosis: a "no indeterminates algorithm," in which a negative cytology and positive hTERT result are considered positive, and a "high-specificity algorithm," in which a negative cytology and positive hTERT result are considered indeterminate (and thus negative for comparison to the gold standard). RESULTS The "no indeterminates algorithm" and "high-specificity algorithm" yielded a sensitivity of 60.6 and 52.1%, a specificity of 70.4 and 90.7%, a positive predictive value of 39.1 and 63.8%, and a negative predictive value of 85.0 and 85.8%, respectively. CONCLUSIONS A positive hTERT result may identify a subset of patients with an increased risk of high-grade UC (HGUC) who may otherwise not be closely followed, while a negative hTERT immunocytochemistry result is associated with a reduction in risk for HGUC.
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Affiliation(s)
- Derek B Allison
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rajni Sharma
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Morgan L Cowan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Christopher J VandenBussche
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Meilleroux J, Daniel G, Aziza J, d'Aure DM, Quintyn-Ranty ML, Basset CML, Evrard SM, Courtade-Saidi MM. One year of experience using the Paris System for Reporting Urinary Cytology. Cancer Cytopathol 2018; 126:430-436. [DOI: 10.1002/cncy.21999] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/05/2018] [Accepted: 03/22/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Julie Meilleroux
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Gwendoline Daniel
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Jacqueline Aziza
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Dominique M. d'Aure
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Marie-Laure Quintyn-Ranty
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Céline ML. Basset
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Solène M. Evrard
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
| | - Monique M. Courtade-Saidi
- Department of Pathology and Cytology; University Cancer Institute Toulouse Oncopole; Toulouse France
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32
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Pichler R, Fritz J, Tulchiner G, Klinglmair G, Soleiman A, Horninger W, Klocker H, Heidegger I. Increased accuracy of a novel mRNA-based urine test for bladder cancer surveillance. BJU Int 2017; 121:29-37. [PMID: 28941000 DOI: 10.1111/bju.14019] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To evaluate the diagnostic accuracy of the Xpert Bladder Cancer (BC) Monitor, compared with cystoscopy and cytology in the oncological follow-up of non-muscle-invasive bladder cancer (NMIBC). MATERIAL AND METHODS A total of 140 patients with a history of NMIBC undergoing routine surveillance at our institution were enrolled prospectively in this study (ISRCTN study registry number 37210907). Urine cytology was evaluated according to the Paris classification system. In addition, urinary specimens were analysed using the Xpert BC Monitor, which measures five target mRNAs (ABL1, CRH, IGF2, UPK1B, ANXA10) using real-time PCR. Descriptive analysis, diagnostic accuracy including sensitivity, specificity, positive (PPV) and negative predictive value (NPV), receiver-operating characteristic curve, and area under the curve (AUC) were calculated. RESULTS The overall sensitivity (0.84) and NPV (0.93) of the Xpert BC Monitor were significantly superior to those of bladder washing cytology (0.33 and 0.76; P < 0.001). Subgroup analyses confirmed the high sensitivity of the Xpert BC Monitor even in low-grade (0.77) and pTa (0.82) disease compared with barbotage cytology (low-grade: 0.13; pTa: 0.21). The overall specificity of the Xpert BC Monitor and barbotage cytology was similar (0.91 vs 0.94; P = 0.41). Combining the Xpert BC Monitor with barbotage cytology (AUC = 0.85) did not enhance diagnostic performance compared with the performance of the Xpert BC Monitor alone (AUC = 0.87). CONCLUSION In this study, we report for the first time that the Xpert BC Monitor, a new mRNA-based urine test, outperforms cytology with regard to sensitivity and NPV, even in low-grade and pTa tumours, with no reduction of specificity.
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Affiliation(s)
- Renate Pichler
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
| | - Josef Fritz
- Department of Medical Statistics, Informatics and Health Economics, Medical University Innsbruck, Innsbruck, Austria
| | - Gennadi Tulchiner
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
| | - Gerald Klinglmair
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
| | - Afschin Soleiman
- Clinical Pathology and Cytodiagnostics, Tyrolean State Hospitals Ltd, Innsbruck, Austria
| | | | - Helmut Klocker
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria.,Urological Laboratory and Division of Experimental Urology, Innsbruck, Austria
| | - Isabel Heidegger
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
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Toyonaga Y, Yamazaki K, Koyama Y, Yamada M, Ishida Y. A Modified Direct-Smear Processing Technique Employing Two-Step Centrifugation/Fixation Is Useful for Detecting High-Grade Urothelial Carcinoma. Acta Cytol 2017; 61:447-454. [PMID: 28954257 DOI: 10.1159/000480062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 08/08/2017] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To demonstrate the usefulness of a direct-smear processing technique employing two-step centrifugation/fixation processing (TSCFP) in the cytoscreening of high-grade urothelial carcinoma (HGUC). STUDY DESIGN Using the T24 HGUC cell line, we compared the cell yield and the morphological preservation of preparations concurrently processed by direct-smear, SurePath, ThinPrep, and TSCFP techniques. A total of 287 urine cytology cases subjected to TSCFP over a period of 6 years were reviewed and reclassified according to the Paris System for Reporting Urinary Cytology (PSRUC) and correlated with histology results. RESULTS TSCFP of T24 cells demonstrated good cell yield with a recovery rate of about 70%. Diagnostic features of HGUC, such as a high nuclear/cytoplasmic ratio and irregular/hyperchromatic chromatin, were better discovered in TSCFP smears than in smears prepared with the other methods. Cytological evaluation of 287 voided urine specimens revealed that the rate of unsatisfactory preparations was quite low (0.30%) and the overall sensitivity, specificity, and positive and negative predictive values for urothelial carcinoma were 0.719, 0.923, 0.973, and 0.462, respectively. CONCLUSION TSCFP was able to provide adequate preparations for detecting HGUC in urine cytology and could be considered as a promising processing method according to the principal purpose of PSRUC.
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Affiliation(s)
- Yasuhiro Toyonaga
- Department of Surgical Pathology, Teikyo University, Chiba Medical Center, Ichihara, Japan
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Wadhwa N, Diwaker P, Lotha N, Arora VK, Singh N. Cytokeratin 20 immunocytochemistry on urine sediments: A potential low-cost adjunct to cytology in the diagnosis of low-grade urothelial carcinoma. Cytopathology 2017; 28:531-535. [PMID: 28940433 DOI: 10.1111/cyt.12463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Urine cytology is the corner-stone for the diagnosis of urothelial neoplasia; however, a substantial proportion of low-grade carcinomas are reported as inconclusive owing to scant cellularity and subtle cytological features. Biomarkers applied on urine sediment smears of such patients are likely to be clinically relevant. Access to Food and Drug Administration approved urinary biomarkers in resource limited setting is poor. Detection of cytokeratin 20 (CK20) in urine sediments, although still a research tool, is a promising marker as immunocytochemistry is performed regularly in several Indian laboratories. OBJECTIVE We tested the clinical utility of CK20 immunocytochemistry as a potential low-cost adjunct to urine cytology in diagnosis of low-grade urothelial carcinoma. One hundred and fifty fresh, voided urine specimens from 42 cases of biopsy proven urothelial neoplasia (14 high grade, 28 combined low-grade [n=26]) and low malignant potential [n=2]), and 20 non-neoplastic lesions were included in the study sample. RESULTS Confident diagnosis of malignancy was possible in five (17.8%) low-grade malignancies. Thirteen of 16 (81.3%) low-grade malignancies with inconclusive cytology showed positive CK20 expression. This reduced the proportion of low-grade cases with inconclusive cytology from 57.1% to 10.7% (P=.021). In addition, we could correctly classify one case of bladder lithiasis with false positive urine cytology. Discrepant CK20 staining (positive) was seen in one patient with acute cystitis. CONCLUSIONS CK20 expression in non-umbrella cells is a robust marker of urinary bladder carcinoma. It has potential clinical utility for identification of low-grade urothelial malignancy with inconclusive cytological diagnosis.
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Affiliation(s)
- N Wadhwa
- Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, Delhi, India
| | - P Diwaker
- Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, Delhi, India
| | - N Lotha
- Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, Delhi, India
| | - V K Arora
- Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, Delhi, India
| | - N Singh
- Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, Delhi, India
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Chen Y, Tao B, Peng Y, Yang W, Wang C, Xiang X, Zhang T, Gao L, Yi J, Zhou X, Huang J. Utility of Fluorescence In Situ Hybridization (FISH) to Sub-Classify Low-Grade Urothelial Carcinoma for Prognostication. Med Sci Monit 2017; 23:3161-3167. [PMID: 28655867 PMCID: PMC5499627 DOI: 10.12659/msm.902481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Fluorescence in situ hybridization (FISH) is used widely to detect cancer levels, but its value in urothelial carcinoma remains unclear. The aim of this study was to use FISH to examine the urine specimens of low-grade urothelial carcinoma (UC) patients to determine the possibility of sub-classifying the prognosis of UC. Material/Methods We diagnosed 107 patients with low-grade UC using a UroVysion kit to detect chromosomes 3, 7, 17, and P16 in the urine. An average 46.6-month follow-up completed in January 2016 combined with the clinical follow-up data were evaluated with Spearman’s correlation analysis to analyze the aberration of chromosomes in relation to the prognostication. Univariate and multivariate analysis using the Mantel-Cox log-rank test for overall, cancer-specific, and disease-free survival were used to determine the prognostic significance of CSP7/CSP17 and CSP3/GLPp16. Results In the 107 samples, 84 showed positive reaction in the FISH test. Furthermore, CSP7/CSP17 was found to be significantly related with age, tumor size, T stage, and tumor numbers, but not in CSP3/GLPp16. In addition, Kaplan-Meier analysis and Cox proportional hazards regression revealed a significant negative correlation between CSP7/CSP17 and survival, while CSP3/GLPp16 showed no significantly differences. Conclusions CSP7/CSP17 positivity on FISH test appears to play a critical role in low-grade UC and may be considered as a high-risk and prognosis factor.
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Affiliation(s)
- Yi Chen
- Department of Urology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Bo Tao
- Department of Orthopaedics, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Ya Peng
- Center Laboratory of Basic Medical Science, Guangxi Medical University, Nanning, Guangxi, China (mainland)
| | - Weijiao Yang
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China (mainland)
| | - Chuang Wang
- Department of Urology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Xuebao Xiang
- Department of Urology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Tianyu Zhang
- Department of Urology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Li Gao
- Department of Urology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
| | - Jiaoyu Yi
- Shanghai Jiao Tong University, Shanghai, China (mainland)
| | - Xiangfu Zhou
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China (mainland)
| | - Jiefu Huang
- Department of Urology, The Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China (mainland)
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Gopalakrishna A, Fantony JJ, Longo TA, Owusu R, Foo WC, Dash R, Denton BT, Inman BA. Anticipatory Positive Urine Tests for Bladder Cancer. Ann Surg Oncol 2017; 24:1747-1753. [PMID: 28074325 DOI: 10.1245/s10434-016-5763-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Indexed: 11/18/2022]
Abstract
PURPOSE The aim of this study was to establish the criteria defining an anticipatory positive test for bladder cancer. METHODS We reviewed all patients at our institution who underwent urine cytology or UroVysion fluorescence in situ hybridization (FISH) and cystoscopy from 2003 to 2012. Test performance and cancer anticipation was assessed using generalized linear mixed models, mixed-effects proportional hazards models, and cumulative incidence curves using tests performed within 30 days of each other as well as within a lag time of 1 year. RESULTS Overall, 6729 urine tests (4729 cytology and 2040 UroVysion FISH) were paired with gold-standard cystoscopies. Sensitivity and specificity were 63 and 41% for cytology, and 37 and 84% for UroVysion FISH, respectively. A 1-year lag time allowed for cancer anticipation and neither test improved. Among patients with positive cytology and initially negative cystoscopy, the hazard ratio of developing a bladder tumor at 1 year was 1.83; 76% of these patients developed a tumor within 1 year. Similarly, among patients with a positive FISH and initially negative cystoscopy, the hazard ratio of developing a bladder tumor at 1 year was 1.56; 40% of these patients developed a tumor within 1 year. CONCLUSIONS Urine-based tests for bladder cancer are frequently falsely positive. With further follow-up time, some of these false positive tests are vindicated as true (anticipatory) positive tests, although many will remain false positives. We developed statistical criteria to determine if a test anticipates future cancers or not.
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Affiliation(s)
| | - Joseph J Fantony
- Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Thomas A Longo
- Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Richmond Owusu
- Division of Urology, Duke University Medical Center, Durham, NC, USA.,Department of Urology, University of California San Diego, San Diego, CA, USA
| | - Wen-Chi Foo
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Rajesh Dash
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Brian T Denton
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Brant A Inman
- Division of Urology, Duke University Medical Center, Durham, NC, USA.
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37
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Macleod LC, Pham KN, Agoff SN, Dahl KL, Pritchett TR, Corman JM. Cytologic persistence of malignant cells after transurethral resection of bladder tumors: Implications for concomitant manipulation of the urinary tract at the time of endoscopic resection. Cancer Cytopathol 2016; 125:114-119. [PMID: 27787959 DOI: 10.1002/cncy.21785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 09/11/2016] [Accepted: 09/12/2016] [Indexed: 11/06/2022]
Abstract
BACKGROUND The current study was conducted to determine the feasibility of cytologically clearing the bladder of tumor cells after transurethral resection of bladder tumor (TURBT) and aggressive serial bladder washing. METHODS A prospective pilot sample of 20 patients with known bladder masses was enrolled before undergoing TURBT. Preoperative cytology and 4 postoperative cytology specimens were assessed for malignant cells between serial bladder washes. Surgeons assessed tumor grade visually at the time of TURBT. RESULTS Surgeons were able to differentiate high-grade disease with limited accuracy (75% sensitivity, 92% specificity, 85% negative predictive value, and 86% positive predictive value). For patients with low-grade disease (12 patients), cytology was atypical in 25% of patients immediately before TURBT and was negative after serial washings in all patients. In patients with high-grade disease (8 patients), approximately 75% had cytology consistent with high-grade urothelial carcinoma immediately before TURBT and only 1 patient was cleared cytologically after serial bladder washings. CONCLUSIONS In patients with high-grade disease, serial bladder washing after TURBT does not appear to clear malignant cells as detected by cytology. This theoretical oncologic risk should be weighed when considering concomitant upper tract procedures such as retrograde pyelography. Future work is needed to quantify risk. Cancer Cytopathol 2017;125:114-119. © 2016 American Cancer Society.
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Affiliation(s)
- Liam C Macleod
- Section of Urology, Virginia Mason Medical Center, Seattle, Washington.,Department of Urology, University of Washington School of Medicine, Seattle, Washington
| | - Khanh N Pham
- Section of Urology, Virginia Mason Medical Center, Seattle, Washington
| | - S Nicholas Agoff
- Section of Urology, Virginia Mason Medical Center, Seattle, Washington
| | - Kathryn L Dahl
- Section of Urology, Virginia Mason Medical Center, Seattle, Washington
| | | | - John M Corman
- Section of Urology, Virginia Mason Medical Center, Seattle, Washington
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38
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Lee PJ, Owens CL, Lithgow MY, Jiang Z, Fischer AH. Causes of false-negative for high-grade urothelial carcinoma in urine cytology. Diagn Cytopathol 2016; 44:994-999. [DOI: 10.1002/dc.23621] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/20/2016] [Accepted: 09/22/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Paul J. Lee
- Department of Pathology; University of Massachusetts Memorial Health Care; 1 Innovation Dr, Biotech 3 Worcester Massachusetts
| | - Christopher L. Owens
- Department of Pathology; University of Massachusetts Memorial Health Care; 1 Innovation Dr, Biotech 3 Worcester Massachusetts
| | - Marie Y. Lithgow
- Department of Pathology; University of Massachusetts Memorial Health Care; 1 Innovation Dr, Biotech 3 Worcester Massachusetts
| | - Zhong Jiang
- Department of Pathology; University of Massachusetts Memorial Health Care; 1 Innovation Dr, Biotech 3 Worcester Massachusetts
| | - Andrew H. Fischer
- Department of Pathology; University of Massachusetts Memorial Health Care; 1 Innovation Dr, Biotech 3 Worcester Massachusetts
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39
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Sayyadi N, Justiniano I, Connally RE, Zhang R, Shi B, Kautto L, Everest-Dass AV, Yuan J, Walsh BJ, Jin D, Willows RD, Piper JA, Packer NH. Sensitive Time-Gated Immunoluminescence Detection of Prostate Cancer Cells Using a TEGylated Europium Ligand. Anal Chem 2016; 88:9564-9571. [DOI: 10.1021/acs.analchem.6b02191] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Nima Sayyadi
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- ARC
Centre of Excellence for Nanoscale Biophotonics (CNBP), Macquarie University, Sydney, New South Wales 2109, Australia
| | - Irene Justiniano
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- Minomic International Ltd., Macquarie Park, Sydney, New South Wales 2113, Australia
| | - Russell E. Connally
- Department
of Physics and Astronomy, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Run Zhang
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Bingyang Shi
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Liisa Kautto
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Arun V. Everest-Dass
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- ARC
Centre of Excellence for Nanoscale Biophotonics (CNBP), Macquarie University, Sydney, New South Wales 2109, Australia
| | - Jingli Yuan
- State
Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, Liaoning Province 116024, China
| | - Bradley J. Walsh
- Minomic International Ltd., Macquarie Park, Sydney, New South Wales 2113, Australia
| | - Dayong Jin
- ARC
Centre of Excellence for Nanoscale Biophotonics (CNBP), Macquarie University, Sydney, New South Wales 2109, Australia
- School of
Mathematical and Physical Sciences, Faculty of Science, University of Technology, Sydney, New South Wales 2007, Australia
| | - Robert D. Willows
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - James A. Piper
- ARC
Centre of Excellence for Nanoscale Biophotonics (CNBP), Macquarie University, Sydney, New South Wales 2109, Australia
- Department
of Physics and Astronomy, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Nicolle H. Packer
- Department
of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- ARC
Centre of Excellence for Nanoscale Biophotonics (CNBP), Macquarie University, Sydney, New South Wales 2109, Australia
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40
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The Paris System for Reporting Urinary Cytology: The Quest to Develop a Standardized Terminology. Adv Anat Pathol 2016; 23:193-201. [PMID: 27233050 DOI: 10.1097/pap.0000000000000118] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The main purpose of urine cytology is to detect high-grade urothelial carcinoma. With this principle in mind, The Paris System (TPS) Working Group, composed of cytopathologists, surgical pathologists, and urologists, has proposed and published a standardized reporting system that includes specific diagnostic categories and cytomorphologic criteria for the reliable diagnosis of high-grade urothelial carcinoma. This paper outlines the essential elements of TPS and the process that led to the formation and rationale of the reporting system. TPS Working Group, organized at the 2013 International Congress of Cytology, conceived a standardized platform on which to base cytologic interpretation of urine samples. The widespread dissemination of this approach to cytologic examination and reporting of urologic samples and the scheme's universal acceptance by pathologists and urologists is critical for its success. For urologists, understanding the diagnostic criteria, their clinical implications, and limitations of TPS is essential if they are to utilize urine cytology and noninvasive ancillary tests in a thoughtful and practical manner. This is the first international/inclusive attempt at standardizing urinary cytology. The success of TPS will depend on the pathology and urology communities working collectively to improve this seminal paradigm shift, and optimize the impact on patient care.
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Barkan GA, Wojcik EM, Nayar R, Savic-Prince S, Quek ML, Kurtycz DFI, Rosenthal DL. The Paris System for Reporting Urinary Cytology: The Quest to Develop a Standardized Terminology. Acta Cytol 2016; 60:185-97. [PMID: 27318895 DOI: 10.1159/000446270] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The main purpose of urine cytology is to detect high-grade urothelial carcinoma (HGUC). With this principle in mind, The Paris System (TPS) Working Group, composed of cytopathologists, surgical pathologists, and urologists, has proposed and published a standardized reporting system that includes specific diagnostic categories and cytomorphologic criteria for the reliable diagnosis of HGUC. This paper outlines the essential elements of TPS and the process that led to the formation and rationale of the reporting system. The Paris System Working Group, organized at the 2013 International Congress of Cytology, conceived a standardized platform on which to base cytologic interpretation of urine samples. The widespread dissemination of this approach to cytologic examination and reporting of urologic samples and the scheme's universal acceptance by pathologists and urologists is critical for its success. For urologists, understanding the diagnostic criteria, their clinical implications, and the limitations of TPS is essential if they are to utilize urine cytology and noninvasive ancillary tests in a thoughtful and practical manner. This is the first international/inclusive attempt at standardizing urinary cytology. The success of TPS will depend on the pathology and urology communities working collectively to improve this seminal paradigm shift, and optimize the impact on patient care.
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Affiliation(s)
- Güliz A Barkan
- Department of Pathology, Loyola University Healthcare System, Maywood, Ill., USA
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42
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Pham HV, Pantanowitz L, Liu Y. Quantitative phase imaging to improve the diagnostic accuracy of urine cytology. Cancer Cytopathol 2016; 124:641-50. [PMID: 27177072 DOI: 10.1002/cncy.21734] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/11/2016] [Accepted: 04/19/2016] [Indexed: 11/10/2022]
Abstract
BACKGROUND A definitive diagnosis of urothelial carcinoma in urine cytology is often challenging and subjective. Many urine cytology samples receive an indeterminate diagnosis. Ancillary techniques such as fluorescence in situ hybridization (FISH) have been used to improve the diagnostic sensitivity, but FISH is not approved as a routine screening test, and the complex fluorescent staining protocol also limits its widespread clinical use. Quantitative phase imaging (QPI) is an emerging technology allowing accurate measurements of the single-cell dry mass. This study was undertaken to explore the ability of QPI to improve the diagnostic accuracy of urine cytology for malignancy. METHODS QPI was performed on unstained, ThinPrep-prepared urine cytology slides from 28 patients with 4 categories of cytological diagnoses (negative, atypical, suspicious, and positive for malignancy). The nuclear/cell dry mass, the entropy, and the nucleus-to-cell mass ratio were calculated for several hundred cells for each patient, and they were then correlated with the follow-up diagnoses. RESULTS The nuclear mass and nuclear mass entropy of urothelial cells showed significant differences between negative and positive groups. These data showed a progressive increase from patients with negative diagnosis, to patients with atypical/suspicious and positive cytologic diagnosis. Most importantly, among the patients in the atypical and suspicious diagnosis, the nuclear mass and its entropy were significantly higher for those patients with a follow-up diagnosis of malignancy than those patients without a subsequent follow-up diagnosis of malignancy. CONCLUSIONS QPI shows potential for improving the diagnostic accuracy of urine cytology, especially for indeterminate cases, and should be further evaluated as an ancillary test for urine cytology. Cancer Cytopathol 2016;124:641-50. © 2016 American Cancer Society.
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Affiliation(s)
- Hoa V Pham
- Biomedical Optical Imaging Laboratory, Departments of Medicine and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Liron Pantanowitz
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.,University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Yang Liu
- Biomedical Optical Imaging Laboratory, Departments of Medicine and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.
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Barkan GA, Wojcik EM, Nayar R, Savic-Prince S, Quek ML, Kurtycz DFI, Rosenthal DL. The Paris System for Reporting Urinary Cytology: the quest to develop a standardized terminology. J Am Soc Cytopathol 2016; 5:177-188. [PMID: 31042521 DOI: 10.1016/j.jasc.2016.04.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The main purpose of urine cytology is to detect high-grade urothelial carcinoma (HGUC). With this principle in mind, The Paris System (TPS) Working Group, composed of cytopathologists, surgical pathologists, and urologists, has proposed and published a standardized reporting system that includes specific diagnostic categories and cytomorphologic criteria for the reliable diagnosis of HGUC. This paper outlines the essential elements of TPS and the process that led to the formation and rationale of the reporting system. The Paris System Working Group, organized at the 2013 International Congress of Cytology, conceived a standardized platform on which to base cytologic interpretation of urine samples. The widespread dissemination of this approach to cytologic examination and reporting of urologic samples and the scheme's universal acceptance by pathologists and urologists is critical for its success. For urologists, understanding the diagnostic criteria, their clinical implications, and the limitations of TPS is essential if they are to utilize urine cytology and noninvasive ancillary tests in a thoughtful and practical manner. This is the first international/inclusive attempt at standardizing urinary cytology. The success of TPS will depend on the pathology and urology communities working collectively to improve this seminal paradigm shift, and optimize the impact on patient care.
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Affiliation(s)
- Güliz A Barkan
- Department of Pathology, Loyola University Healthcare System, 2160 S. First Ave, Building 110, Room 2238, Maywood, Illinois, 60153.
| | - Eva M Wojcik
- Department of Pathology, Loyola University Healthcare System, 2160 S. First Ave, Building 110, Room 2238, Maywood, Illinois, 60153
| | - Ritu Nayar
- Department of Pathology, Northwestern Memorial Hospital, Chicago Illinois
| | | | - Marcus L Quek
- Department of Urology, Loyola University Health Systems, Maywood, Illinois
| | - Daniel F I Kurtycz
- Department of Pathology and Laboratory Medicine, Wisconsin State Laboratory of Hygiene, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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Zhang ML, Rosenthal DL, VandenBussche CJ. The cytomorphological features of low-grade urothelial neoplasms vary by specimen type. Cancer Cytopathol 2016; 124:552-64. [PMID: 27019161 DOI: 10.1002/cncy.21716] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 02/25/2016] [Accepted: 03/04/2016] [Indexed: 11/08/2022]
Abstract
BACKGROUND Urinary tract (UT) cytology has been used successfully to diagnose high-grade urothelial carcinoma but is reported to have poor sensitivity for low-grade urothelial neoplasms (LGUNs). However, the literature has shown that LGUN may be associated with atypical findings in UT specimens. The authors determined which features were most commonly observed, and whether the method of specimen procurement had an effect. METHODS A total of 326 specimens were identified over an 8-year period. One hundred fifty-three specimens were reviewed and graded for cellularity, number of tissue fragments (TFs), degeneration, inflammation, hyperchromasia, nuclear pleomorphism, nuclear border irregularity, nuclear size, cytoplasmic tails, nuclear eccentricity, and high-grade features. RESULTS Of the 153 specimens, 86 specimens (56.2%) demonstrated cellular atypia; of those, 51.2% were voided urine (VU) and 31.4% were UT washing (UW) specimens. The majority of specimens had many cells (46.5%), many single cells (44.2%), few to moderate TFs (46.5% and 27.9%, respectively), mild hyperchromasia (52.3%), mild nuclear pleomorphism (51.2%), mild nuclear border irregularity (60.5%), cytoplasmic tails (51.2%), and few to moderate eccentric nuclei (37.2% and 36.1%, respectively). The presence of TFs, cytoplasmic tails, and eccentric and enlarged nuclei were significantly more common in UW versus VU specimens (P = .036, .012, .014, and .027, respectively) and in UW versus benign UW controls (P = .001, .002, .002, and .003, respectively). CONCLUSIONS Approximately 50% of UT specimens with LGUN on follow-up demonstrated atypical features. Based on comparison with benign UW controls, TFs, cytoplasmic tails, nuclear eccentricity, and enlarged nuclei were more pronounced in neoplastic UW than VU specimens, suggesting that the method of urine specimen procurement affects the presence of certain low-grade features. Cancer Cytopathol 2016;124:552-64. © 2016 American Cancer Society.
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Affiliation(s)
- Mingjuan L Zhang
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Dorothy L Rosenthal
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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