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El-Melegy M, Mamdouh A, Ali S, Badawy M, El-Ghar MA, Alghamdi NS, El-Baz A. Prostate Cancer Diagnosis via Visual Representation of Tabular Data and Deep Transfer Learning. Bioengineering (Basel) 2024; 11:635. [PMID: 39061717 PMCID: PMC11274351 DOI: 10.3390/bioengineering11070635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/10/2024] [Accepted: 06/17/2024] [Indexed: 07/28/2024] Open
Abstract
Prostate cancer (PC) is a prevalent and potentially fatal form of cancer that affects men globally. However, the existing diagnostic methods, such as biopsies or digital rectal examination (DRE), have limitations in terms of invasiveness, cost, and accuracy. This study proposes a novel machine learning approach for the diagnosis of PC by leveraging clinical biomarkers and personalized questionnaires. In our research, we explore various machine learning methods, including traditional, tree-based, and advanced tabular deep learning methods, to analyze tabular data related to PC. Additionally, we introduce the novel utilization of convolutional neural networks (CNNs) and transfer learning, which have been predominantly applied in image-related tasks, for handling tabular data after being transformed to proper graphical representations via our proposed Tab2Visual modeling framework. Furthermore, we investigate leveraging the prediction accuracy further by constructing ensemble models. An experimental evaluation of our proposed approach demonstrates its effectiveness in achieving superior performance attaining an F1-score of 0.907 and an AUC of 0.911. This offers promising potential for the accurate detection of PC without the reliance on invasive and high-cost procedures.
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Affiliation(s)
- Moumen El-Melegy
- Electrical Engineering Department, Assiut University, Assiut 71516, Egypt; (M.E.-M.); (A.M.); (S.A.)
| | - Ahmed Mamdouh
- Electrical Engineering Department, Assiut University, Assiut 71516, Egypt; (M.E.-M.); (A.M.); (S.A.)
| | - Samia Ali
- Electrical Engineering Department, Assiut University, Assiut 71516, Egypt; (M.E.-M.); (A.M.); (S.A.)
| | - Mohamed Badawy
- Radiology Department, Urology and Nephrology Center, Mansoura University, Mansoura 35516, Egypt; (M.B.); (M.A.E.-G.)
| | - Mohamed Abou El-Ghar
- Radiology Department, Urology and Nephrology Center, Mansoura University, Mansoura 35516, Egypt; (M.B.); (M.A.E.-G.)
| | - Norah Saleh Alghamdi
- Department of Computer Sciences, College of Computer and Information Sciences, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Ayman El-Baz
- Bioengineering Department, University of Louisville, Louisville, KY 40292, USA
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Second medical opinion in oncological setting. Crit Rev Oncol Hematol 2021; 160:103282. [PMID: 33675905 DOI: 10.1016/j.critrevonc.2021.103282] [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: 06/27/2020] [Revised: 01/23/2021] [Accepted: 02/27/2021] [Indexed: 11/20/2022] Open
Abstract
Oncological patients increasingly require second medical opinions to feel more likely confident with their oncologists and treatments, although this could lead to wrong opinions and delay in the start of treatments. Second opinions can be required also by physicians to obtain advices, especially in case of rare tumors. The request of new opinions is documented in radiology and pathology settings too, with not negligible discrepancy rate. Conversely, the role in general medical/surgical conditions has not been well established. Literature is poor of studies relative to second opinions or they are more focused on patient's motivations. For these reasons, AIOM (Italian Association of Medical Oncology) and AIOM Foundation faced this topic during the 7th Annual Meeting on Ethics in Oncology (Ragusa, 4-5 t h May 2018). In this position paper we report reasons, limits, advantages and outcomes of second medical opinion and the respective Decalogue in the oncological setting.
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Burger PM, Westerink J, Vrijsen BEL. Outcomes of second opinions in general internal medicine. PLoS One 2020; 15:e0236048. [PMID: 32645107 PMCID: PMC7347190 DOI: 10.1371/journal.pone.0236048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/26/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND To date, the outcomes of second opinions in internal medicine in terms of diagnostic yield and patient benefit have not been studied extensively. This retrospective study explores the outcomes of second opinions at a general internal medicine outpatient clinic in an academic hospital. METHODS A register of all patients referred to the general internal medicine outpatient clinic of the University Medical Center in Utrecht for a second opinion, was kept. All 173 patients referred between June 2016 and August 2018 were selected. Case records were analyzed for patient characteristics, referring doctor, chief complaint, performed investigations, follow-up time and, established diagnosis, additional diagnoses, initiated treatment and reported benefit. RESULTS A new diagnosis was established in 13% of all patients. A new treatment was initiated in 56% of all patients: 91% and 51% of patients with and without a new diagnosis respectively (p < 0.001). Of all patients, 19% received an effective treatment (52% vs 14% of patients with vs without a new diagnosis, p < 0.001). Regardless of treatment, resolution or improvement of the chief complaint was achieved in 28% of all patients (52% vs 25% of patients with vs without a new diagnosis, p = 0.006). Regarding diagnostics, 23-33% of radiology, endoscopy and pathology tests performed during second opinion were a repetition of previously conducted investigations. Conventional blood tests were a repetition in 89% of cases. Median time to diagnosis was 64 days (IQR: 25-128 days) and median time to discharge was 75 days (IQR: 31-144 days). CONCLUSION Second opinions in general internal medicine lead to the establishment of a new diagnosis in a small proportion of patients. However, the value of second opinions may not be limited to the establishment of diagnoses, as new treatments are often initiated and overall patients report improved symptomatology in 28% of cases.
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Affiliation(s)
- Pascal M. Burger
- Department of Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jan Westerink
- Department of Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Bram E. L. Vrijsen
- Department of Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Acute Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
- * E-mail:
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Abstract
BACKGROUND Patients seeking second opinions are a challenge for the colorectal cancer provider because of complexity, failed therapeutic relationship with another provider, need for reassurance, and desire for exploration of treatment options. OBJECTIVE The purpose of this study was to describe the patient and treatment characteristics of patients seeking initial and second opinions in colorectal cancer care at a multidisciplinary colorectal cancer clinic. DESIGN This was a retrospective cohort study. SETTINGS A prospectively collected clinical registry of a multidisciplinary colorectal cancer clinic was included. PATIENTS The study included patients with colon or rectal cancer seen from 2012 to 2017. MAIN OUTCOME MEASURES Data were analyzed for initial versus second opinion and demographic and clinical characteristics. RESULTS Of 1711 patients with colorectal cancer, 1008 (58.9%) sought an initial opinion and 700 (40.9%) sought a second opinion. As compared with initial-opinion patients, second-opinion patients were more likely to have stage IV disease (OR = 1.94 (95% CI, 1.47-2.58)), recurrent disease (OR = 1.67 (95% CI, 1.13-2.46)), and be ages 40 to 49 years (OR = 1.47 (95% CI, 1.02-2.12)). Initial- and second-opinion cohorts were similar in terms of sex, race, and proportion of colon versus rectal cancer. Among second-opinion patients, 246 (35%) transitioned their care to the multidisciplinary colorectal cancer clinic. LIMITATIONS We were unable to capture the final treatment plan for those patients who did not transfer care to the multidisciplinary colorectal cancer clinic. CONCLUSIONS Patients seeking a second opinion represent a unique subset of patients with colorectal cancer. In general, they are younger and more likely to have stage IV or recurrent disease than patients seeking an initial opinion. Although transfer of care to a multidisciplinary colorectal cancer clinic after second opinion is lower than for initial consultations, multidisciplinary colorectal cancer clinics provide an important role for patients with complex disease characteristics and treatment needs. See Video Abstract at http://links.lww.com/DCR/B192. CARACTERíSTICAS DE LOS PACIENTES QUE BUSCAN UNA SEGUNDA OPINIóN EN CLíNICAS MULTIDISCIPLINARIAS ESPECIALIZADAS EN CáNCER COLORECTAL: Los pacientes que buscan una segunda opinión son un desafío para el médico que trata el cáncer colorrectal debido a la complejidad de la situación, a la relación terapéutica fallida con otro especialista, a la necesidad de tranquilidad y el deseo de explorar otras opciones del tratamiento.El describir las características y el tratamiento de los pacientes que buscan opiniones iniciales y secundarias en la atención del cáncer colorrectal en una clínica especializada de manera multidisciplinaria en cáncer colorrectal.Este es un estudio de cohortes retrospectivo.Registro clínico de casos obtenidos prospectivamente en una clínica especializada de manera multidisciplinaria en cáncer colorrectal.Todos aquellos pacientes con cáncer de colon o recto examinados entre 2012-2017.Se analizaron los datos obtenidos en la opinión inicial y se compararon con la segunda opinión, se revisaron tanto sus características demográficas como clínicas.De 1711 pacientes con cáncer colorrectal, 1008 (58.9%) buscaron una opinión inicial, 700 (40.9%) buscaron una segunda opinión. En comparación con los pacientes de opinión inicial, los pacientes de segunda opinión presentaron más probabilidades de tener enfermedad en estadio IV (OR 1.94, IC 95% 1.47-2.58), enfermedad recurrente (OR 1.67, IC 95% 1.13-2.46) y tener edades entre 40 y 49 (O 1.47, IC 95% 1.02-2.12). Las cohortes iniciales y de segunda opinión fueron similares en términos de género, raza y proporción del cáncer de colon versus cáncer de recto. Entre los pacientes de segunda opinión, 246 (35%) transfirieron su tratamiento hacia una clínica multidisplinaria especializada en cáncer colorrectal.No se obtuvieron los planes del tratamiento final de aquellos pacientes que no transfirieron sus cuidados hacia una la clínica especializada en cáncer colorrectal.Los pacientes que buscan una segunda opinión representan un subconjunto único de personas con cáncer colorrectal. En general, son más jóvenes y tienen más probabilidades de tener enfermedad en estadio IV o recurrente, con relación a aquellos pacientes que buscan una opinión inicial. Aunque la transferencia de los cuidados hacia una clínica multidisciplinaria especializada en cáncer colorrectal después de una segunda opinión es menor que para las consultas iniciales. Las clínicas multidisciplinarias especializadas en cáncer colorrectal juegan un papel importante con los pacientes que tienen características complejas de enfermedad y necesidades particulares en el tratamiento. Consulte Video Resumen en http://links.lww.com/DCR/B192. (Traducción-Dr Xavier Delgadillo).
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Aldaoud N, Hallak A, Abdo N, Al Bashir S, Marji N, Graboski-Bauer A. Interobserver Variability in the Diagnosis of High-Grade Prostatic Intraepithelial Neoplasia in a Tertiary Hospital in Northern Jordan. CLINICAL PATHOLOGY 2020; 13:2632010X19898472. [PMID: 31950103 PMCID: PMC6952849 DOI: 10.1177/2632010x19898472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 12/06/2018] [Indexed: 11/16/2022]
Abstract
Prostate intraepithelial neoplasia is described as a precursor lesion to prostatic adenocarcinoma. High-grade prostate intraepithelial neoplasia (HGPIN) is classified as both grade 2 and 3 prostate intraepithelial neoplasia due to inconsistency between pathologists' findings. In our study, we assessed the interobserver variability in the diagnosis of HGPIN among genitourinary and nongenitourinary pathologists. All cases with prostate adenocarcinoma diagnosis on needle core biopsy, radical prostatectomy, and transurethral resection of prostate (TURP) between the years 2005 and 2014 were included. In total, 191 prostate cancer cases were included: 109 needle core biopsies, 45 radical prostatectomies, and 37 TURP. All were independently reviewed by 2 urologic pathologists for the presence of HGPIN. High-grade prostate intraepithelial neoplasia was diagnosed in 65 cases (34%), among which the lesion was recognized by the reporting pathologists in 36 (55%) of the cases and was missed in 29 (45%) of the cases with a κ coefficient of 0.53. There was a moderate interobserver agreement in the diagnosis of HGPIN. Consultation with genitourinary pathologist can improve HGPIN diagnosis.
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Affiliation(s)
- Najla Aldaoud
- Department of Pathology and Microbiology, Jordan University of Science and Technology, Irbid, Jordan.,Department of Pathology and Microbiology, King Abdullah University Hospital, Irbid, Jordan
| | - Amer Hallak
- Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Nour Abdo
- Department of Public Health, Jordan University of Science and Technology, Irbid, Jordan
| | - Samir Al Bashir
- Department of Pathology and Microbiology, Jordan University of Science and Technology, Irbid, Jordan
| | - Noor Marji
- Department of Pathology and Microbiology, Jordan University of Science and Technology, Irbid, Jordan.,Department of Pathology, University of Florida, Jacksonville, FL, USA
| | - Ashley Graboski-Bauer
- Department of Public Health Sciences, New Mexico State University, Las Cruces, NM, USA
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Hillen MA, Medendorp NM, Daams JG, Smets EMA. Patient-Driven Second Opinions in Oncology: A Systematic Review. Oncologist 2017; 22:1197-1211. [PMID: 28606972 PMCID: PMC5634767 DOI: 10.1634/theoncologist.2016-0429] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 04/27/2017] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Although patient-driven second opinions are increasingly sought in oncology, the desirability of this trend remains unknown. Therefore, this systematic review assesses evidence on the motivation for and frequency of requests for second opinions and examines how they evolve and their consequences for oncological practice. MATERIALS AND METHODS Relevant databases were sought using the terms "cancer," "second opinion," and "self-initiated." Included were peer-reviewed articles that reported on patient-initiated second opinions within oncology. Selection, data extraction, and quality assessment were performed and discussed by two researchers. RESULTS Of the 25 included studies, the methodological designs were qualitative (n = 4), mixed (n = 1), or quantitative (n = 20). Study quality was rated high for 10 studies, moderate for eight, and low for seven studies. Reported rates of second opinion seeking ranged from 1%-88%. Higher education was most consistently related to seeking a second opinion. Patients' primary motivations were a perceived need for certainty or confirmation, a lack of trust, dissatisfaction with communication, and/or a need for more (personalized) information. Reported rates of diagnostic or therapeutic discrepancies between the first and second opinions ranged from 2%-51%. DISCUSSION Additional studies are required to further examine the medical, practical, and psychological consequences of second opinions for patients and oncologists. Future studies could compare the potential advantages and disadvantages of second opinion seeking, and might offer guidance to patients and physicians to better facilitate the second opinion process. Some practical recommendations are provided for oncologists to optimally discuss and conduct second opinions with their patients. The Oncologist 2017;22:1197-1211 IMPLICATIONS FOR PRACTICE: Although cancer patients increasingly seek a second opinion, the benefits of this process remain unclear. Results of this systematic review suggest that the available studies on this topic are highly variable in both methodology and quality. Moreover, reported rates for a second opinion (1%-88%) as well as for disagreement between the first and second opinion (2%-51%) range widely. The primary motivations of patients are a need for certainty, lack of trust, dissatisfaction with communication, and/or a need for more (personalized) information. Additional research should evaluate how unnecessary second opinions might be avoided. Practical suggestions are provided for oncologists to optimize second opinions.
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Affiliation(s)
- Marij A Hillen
- Department of Medical Psychology, Amsterdam, The Netherlands
| | | | - Joost G Daams
- Medical Library, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Ellen M A Smets
- Department of Medical Psychology, Amsterdam, The Netherlands
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Tosoian JJ, Alam R, Ball MW, Carter HB, Epstein JI. Managing high-grade prostatic intraepithelial neoplasia (HGPIN) and atypical glands on prostate biopsy. Nat Rev Urol 2017; 15:55-66. [PMID: 28858331 DOI: 10.1038/nrurol.2017.134] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Prostate biopsy is the gold standard for diagnosing prostate cancer and reliable pathological assessment is essential for guiding management. Research efforts over the past few years have aimed to establish a more universal approach to management according to pathological grading; however, high-grade prostatic intraepithelial neoplasia (HGPIN) and atypical glands suspicious for carcinoma are two diagnoses without standardized follow-up and treatment pathways. Much of this uncertainty is due to limited evidence describing the subsequent rates of cancer and high-grade cancer when HGPIN or atypical glands are detected on initial biopsy. Fortunately, data from the past decade have shed light on these phenomena, and an improved understanding of the implications of the presence of HGPIN and atypical glands on prostate biopsy means that clinical recommendations can be made for the management of patients with these diagnoses.
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Affiliation(s)
- Jeffrey J Tosoian
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins University School of Medicine 600 N. Wolfe Street, Marburg 134, Baltimore, Maryland 21287, USA
| | - Ridwan Alam
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins University School of Medicine 600 N. Wolfe Street, Marburg 134, Baltimore, Maryland 21287, USA
| | - Mark W Ball
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins University School of Medicine 600 N. Wolfe Street, Marburg 134, Baltimore, Maryland 21287, USA
| | - H Ballentine Carter
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins University School of Medicine 600 N. Wolfe Street, Marburg 134, Baltimore, Maryland 21287, USA
| | - Jonathan I Epstein
- Department of Pathology, Johns Hopkins University School of Medicine, 401 N. Broadway, Weinberg 2242, Baltimore, Maryland 21231, USA
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Abstract
CONTEXT - Precursor lesions of urologic malignancies are established histopathologic entities, which are important not only to recognize for clinical purposes, but also to further investigate at the molecular level in order to gain a better understanding of the pathogenesis of these malignancies. OBJECTIVE - To provide a brief overview of precursor lesions to the most common malignancies that develop within the genitourinary tract with a focus on their clinical implications, histologic features, and molecular characteristics. DATA SOURCES - Literature review from PubMed, urologic pathology textbooks, and the 4th edition of the World Health Organization Classification of Tumours of the Urinary System and Male Genital Organs. All photomicrographs were taken from cases seen at Weill Cornell Medicine or from the authors' personal slide collections. CONCLUSIONS - The clinical importance and histologic criteria are well established for the known precursor lesions of the most common malignancies throughout the genitourinary tract, but further investigation is warranted at the molecular level to better understand the pathogenesis of these lesions. Such investigation may lead to better risk stratification of patients and potentially novel treatments.
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Kryvenko ON, Epstein JI. Changes in prostate cancer grading: Including a new patient-centric grading system. Prostate 2016; 76:427-33. [PMID: 26709152 DOI: 10.1002/pros.23142] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 12/08/2015] [Indexed: 11/10/2022]
Abstract
The first structured approach to grade prostate cancer based on the underlying histological architecture was developed by Donald Gleason who in 1966 proposed a morphologic classification of prostate cancer and in 1974 demonstrated its clinical significance based on prostate cancer-specific death. Contemporarily referred to as the Gleason grading system, it has gained worldwide recognition allowing a more individualized approach to patients with prostate cancer. In 2005, the International Society of Urologic Pathology (ISUP) made the first revisions to the grading system. Subsequently, based on the new discoveries in pathologic and clinical aspects of prostate cancer, as well as the changing nature of the prostate cancer in part due to a robust screening, there was a need for experts to re-visit the approach to grade prostate cancer. In November 2014, the ISUP experts and clinical leaders in prostate cancer from 17 countries conducted a consensus conference in Chicago, IL, USA. The consensus conference defined various grade patterns and proposed the adoption of a new grading system of prostate cancer. Herein, we describe the background and rationale for the changes and provide guidelines to their clinical implementation.
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Affiliation(s)
- Oleksandr N Kryvenko
- Department of Pathology and Laboratory Medicine, Department of Urology, and Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida
| | - Jonathan I Epstein
- Departments of Pathology, Urology, and Oncology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
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Nakhleh RE, Nosé V, Colasacco C, Fatheree LA, Lillemoe TJ, McCrory DC, Meier FA, Otis CN, Owens SR, Raab SS, Turner RR, Ventura CB, Renshaw AA. Interpretive Diagnostic Error Reduction in Surgical Pathology and Cytology: Guideline From the College of American Pathologists Pathology and Laboratory Quality Center and the Association of Directors of Anatomic and Surgical Pathology. Arch Pathol Lab Med 2016; 140:29-40. [PMID: 25965939 DOI: 10.5858/arpa.2014-0511-sa] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CONTEXT Additional reviews of diagnostic surgical and cytology cases have been shown to detect diagnostic discrepancies. OBJECTIVE To develop, through a systematic review of the literature, recommendations for the review of pathology cases to detect or prevent interpretive diagnostic errors. DESIGN The College of American Pathologists Pathology and Laboratory Quality Center in association with the Association of Directors of Anatomic and Surgical Pathology convened an expert panel to develop an evidence-based guideline to help define the role of case reviews in surgical pathology and cytology. A literature search was conducted to gather data on the review of cases in surgical pathology and cytology. RESULTS The panel drafted 5 recommendations, with strong agreement from open comment period participants ranging from 87% to 93%. The recommendations are: (1) anatomic pathologists should develop procedures for the review of selected pathology cases to detect disagreements and potential interpretive errors; (2) anatomic pathologists should perform case reviews in a timely manner to avoid having a negative impact on patient care; (3) anatomic pathologists should have documented case review procedures that are relevant to their practice setting; (4) anatomic pathologists should continuously monitor and document the results of case reviews; and (5) if pathology case reviews show poor agreement within a defined case type, anatomic pathologists should take steps to improve agreement. CONCLUSIONS Evidence exists that case reviews detect errors; therefore, the expert panel recommends that anatomic pathologists develop procedures for the review of pathology cases to detect disagreements and potential interpretive errors, in order to improve the quality of patient care.
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Affiliation(s)
- Raouf E Nakhleh
- From the Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, Florida (Dr Nakhleh); the Department of Pathology, Massachusetts General Hospital, Boston (Dr Nosé); Governance (Ms Colasacco) and the Pathology and Laboratory Quality Center (Mss Fatheree and Ventura), College of American Pathologists, Northfield, Illinois; Hospital Pathology Associates, Abbott Northwestern Hospital, Minneapolis, Minnesota (Dr Lillemoe); the Department of Medicine, Duke University, Durham, North Carolina (Dr McCrory); the Department of Pathology and Laboratory Medicine, Henry Ford Health System, Detroit, Michigan (Dr Meier); the Department of Pathology, Baystate Medical Center, Springfield, Massachusetts (Dr Otis); the Department of Pathology, University of Michigan Medical School, Ann Arbor (Dr Owens); the Department of Pathology, Memorial University of Newfoundland/Eastern Health Authority, St John's, Newfoundland, Canada (Dr Raab); the Department of Pathology, St John's Health Center, Santa Monica, California (Dr Turner); and the Department of Pathology, Homestead Hospital, Homestead, Florida (Dr Renshaw). Dr Meier is currently with the Department of Pathology, Massachusetts General Hospital, Boston
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Efthimiou I, Skrepetis K, Bournia E. Single foci prostate cancer: current diagnosis and management. Curr Urol 2013; 7:1-6. [PMID: 24917748 DOI: 10.1159/000343544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 01/14/2013] [Indexed: 01/22/2023] Open
Abstract
Diagnosis of small prostate cancer foci is a real challenge for pathologists and urologists as it carries the risk of false positive or negative diagnosis with clinical consequences. Diagnosis of small prostate cancer foci requires a strict methodological approach which includes a search for major and minor features under low and high magnification. Ambiguous cases can be further clarified with the use of basal cell immunomarkers complemented by a positive indicator of malignancy. Despite the new diagnostic armamentarium, a few cases will continue to remain doubtful and might require an appropriate rebiopsy.
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Affiliation(s)
- Ioannis Efthimiou
- Department of Urology, General Hospital of Kalamata, Kalamata, Greece
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Venigalla S, Zhao C, Miyamoto H. Histopathologic features of atypical glands on prostate biopsy: nucleolar size is a predictor of subsequent detection of prostatic adenocarcinoma. Prostate 2013; 73:376-81. [PMID: 22926960 DOI: 10.1002/pros.22577] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 08/02/2012] [Indexed: 11/12/2022]
Abstract
BACKGROUND Patients whose prostate biopsy reveals the presence of atypical glands suspicious for carcinoma (AGSC) are subject to close monitoring and repeat biopsies, perhaps unnecessarily, as clinicians do not have a clear basis for understanding and stratifying the significance of these findings. METHODS In a retrospective, blinded manner, we histopathologically examined initial biopsies reported as AGSC (82 patients, 93 foci). On subsequent biopsies, 31 (38%)/5 (6%) patients were found to have prostate cancer (PCA)/AGSC, respectively, while no carcinoma (NOCA) was identified in the remainder (56%) of cases. RESULTS Nucleolar grade (on a scale of 1-4 with "1" denoting small, inconspicuous nucleoli and "4" denoting macronucleoli) was significantly higher in PCA cases than in NOCA cases whether comparing all AGSC foci (P = 0.006) or when considering the highest grade in each patient (P = 0.009). However, the number of AGSC per focus was similar (P = 0.926) between PCA (mean ± SD: 7.03 ± 5.35) and NOCA (mean ± SD: 7.13 ± 4.44). Adjacent (P = 0.117) and separate (P = 0.457) high-grade prostatic intraepithelial neoplasia was found in 8/37 (22%) foci and 12/31 (39%) cases in PCA, respectively, and in 4/48 (8%) foci and 13/46 (28%) cases in NOCA, respectively. The presence of intraluminal dense secretion, crystalloid, or mucin in AGSC did not show a statistically significant correlation between PCA [5/37 (14%)] and NOCA [10/48 (21%)] (P = 0.567). CONCLUSIONS Our study may thus clarify the significance of AGSC on prostate biopsy and suggests that the size of nucleoli in AGSC is a positive predictor of subsequent detection of prostatic adenocarcinoma.
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Affiliation(s)
- Sriram Venigalla
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York 14642, USA
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13
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Initial atypical diagnosis with carcinoma on subsequent prostate needle biopsy: findings at radical prostatectomy. J Urol 2010; 184:1953-7. [PMID: 20846684 DOI: 10.1016/j.juro.2010.06.139] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Indexed: 11/22/2022]
Abstract
PURPOSE Limited data exist on radical prostatectomy findings performed for cancer on repeat biopsy following an initial atypical biopsy (atypical glands suspicious but not diagnostic for carcinoma). MATERIALS AND METHODS We compared 169 such men to 15,810 without an initial diagnosis of atypical glands suspicious for carcinoma who underwent radical prostatectomy from 1993 to 2008. RESULTS Median time between atypical biopsy and repeat biopsy showing cancer was 6.1 months (range 0.7 to 94.8). An initial diagnosis of atypical glands suspicious but not diagnostic for carcinoma correlated significantly with nonpalpable disease, biopsy Gleason score 6 and lower tumor volume on needle cores. Compared to radical prostatectomy without prior atypical findings, radical prostatectomy cases with an initial atypical biopsy had a significantly lower Gleason score (p <0.0001) and pathological stage (p = 0.001), with 126 (74.5%) Gleason score 6 and 140 (83.0%) organ confined. Only 2 (1.2%) cases showed seminal vesicle involvement and none had lymph node metastases. In addition to known preoperative parameters (clinical stage and biopsy Gleason score), the presence of initial atypical biopsy was an independent predictor of organ confined disease at radical prostatectomy. However, when tumor volume on needle biopsy was included in the multivariate analysis a diagnosis of atypical glands suspicious but not diagnostic for carcinoma lost its independent predictive value. CONCLUSIONS Prostate cancer diagnosed on needle biopsy following a diagnosis of atypical glands suspicious but not diagnostic of carcinoma demonstrates a significantly lower tumor grade and pathological stage at radical prostatectomy than cancer without such a diagnosis. Correlating with lower tumor volume on biopsy, the presence of initial atypical biopsy predicts organ confined disease at radical prostatectomy. However, a few cases with high Gleason score and advanced pathological stage in this group emphasize the importance of re-biopsy within 3 to 6 months following such a diagnosis.
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False-negative prostate needle biopsies: frequency, histopathologic features, and follow-up. Am J Surg Pathol 2010; 34:35-43. [PMID: 19935058 DOI: 10.1097/pas.0b013e3181c3ece9] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Little is known about the frequency, histopathologic characteristics, and clinical consequences of false-negative prostate biopsies, that is, biopsies classified as benign but containing adenocarcinoma or atypical suspicious glands [atypical small acinar proliferations (ASAP)]. Objective of this study was to evaluate false-negative prostate biopsy in a prostate cancer screening setting. Prostate biopsy sets of 196 participants of a screening trial, which had been reported as "benign" at initial diagnosis, followed by a diagnosis of adenocarcinoma in a subsequent screening round were reviewed by 2 urologic pathologists. Adenocarcinoma was identified in 19 biopsy cores corresponding to 16 (8.2%) patients and ASAP in 24 cores, corresponding to 19 patients (9.7%). All missed prostate cancers were Gleason score 6 (3+3). After correction for patient selection, the overall false-negative biopsy rate was estimated to be 2.4%; 1.1% for prostate cancer; and 1.3% for ASAP. Clinicopathologic features at the time of initial biopsy and of subsequent prostate cancer diagnosis did not differ between patients with a false-negative or true benign biopsy. Relatively low number of atypical glands (<10 glands), intense intermingling with preexistent glands or lack of architectural disorganization were the most prominent risk factors for a false-negative diagnosis. Another potential pitfall was the presence of prostate cancer variants, as 1 adenocarcinoma was of foamy gland type and 3 of pseudohyperplastic type. Routine examination of at least 1 level of prostate biopsy sets at high magnification and awareness of histologic prostate cancer variants might reduce the risk of missing or misinterpreting a relevant lesion at prostate biopsy evaluation.
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Cazares LH, Troyer D, Mendrinos S, Lance RA, Nyalwidhe JO, Beydoun HA, Clements MA, Drake RR, Semmes OJ. Imaging mass spectrometry of a specific fragment of mitogen-activated protein kinase/extracellular signal-regulated kinase kinase kinase 2 discriminates cancer from uninvolved prostate tissue. Clin Cancer Res 2009; 15:5541-51. [PMID: 19690195 DOI: 10.1158/1078-0432.ccr-08-2892] [Citation(s) in RCA: 163] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE Histopathology is the standard approach for tissue diagnostics and centerpiece of pathology. Although the current system provides prognostic information, there is need for molecular markers that enhance diagnosis and better predict clinical prognosis. The ability to localize disease-specific molecular changes in biopsy tissue would help improve critical pathology decision making. Direct profiling of proteins from tissue using matrix-assisted laser desorption/ionization imaging mass spectrometry has the potential to supplement morphology with underlying molecular detail. EXPERIMENTAL DESIGN A discovery set of 11 prostate cancer (PCa)-containing and 10 benign prostate tissue sections was evaluated for protein expression differences. A separate validation set of 54 tissue sections (23 PCa and 31 benign) was used to verify the results. Cryosectioning was done to yield tissue sections analyzed by a pathologist to determine tissue morphology and mirror sections for imaging mass spectrometry. Spectra were acquired and the intensity of signals was plotted as a function of the location within the tissue. RESULTS An expression profile was found that discriminates between PCa and normal tissue. The overexpression of a single ion at m/z 4,355 was able to discriminate cancer from uninvolved tissue. Tandem mass spectrometry identified this marker as a fragment of mitogen-activated protein kinase/extracellular signal-regulated kinase kinase kinase 2 (MEKK2). The ability of MEKK2 to discriminate tumor from normal cells was orthogonally confirmed. CONCLUSIONS This study highlights the potential of this approach to uncover molecular detail that can be correlated with pathology decision making. In addition, the identification of MEKK2 shows the ability to discover proteins of relevance to PCa biology.
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Affiliation(s)
- Lisa H Cazares
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, Virginia 23507, USA
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Salivary type tumors seen in consultation. Virchows Arch 2009; 454:457-66. [DOI: 10.1007/s00428-009-0742-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 01/27/2009] [Accepted: 01/29/2009] [Indexed: 11/27/2022]
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Epstein JI. Precursor lesions to prostatic adenocarcinoma. Virchows Arch 2008; 454:1-16. [PMID: 19048290 DOI: 10.1007/s00428-008-0707-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2008] [Accepted: 11/17/2008] [Indexed: 11/25/2022]
Abstract
High-grade prostatic intraepithelial neoplasia (PIN) is the one well-documented precursor to adenocarcinoma of the prostate. This review article defines both low- and high-grade PIN. Unusual variants of high-grade PIN are illustrated. Benign lesions that may be confused with high-grade PIN, including central zone histology, clear cell cribriform hyperplasia, and basal cell hyperplasia are described and illustrated. High-grade PIN is also differentiated from invasive acinar (usual) and ductal adenocarcinoma. The incidence of high-grade PIN, its relationship to carcinoma (including molecular findings), and risk of cancer on rebiopsy are covered in detail. Finally, intraductal carcinoma of the prostate, a controversial entity, is discussed and differentiated from high-grade PIN.
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Affiliation(s)
- Jonathan I Epstein
- Departments of Pathology, Urology and Oncology, The Johns Hopkins Hospital, 401 N. Broadway St., Rm 2242, Baltimore, MD, 21231, USA.
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Abstract
PURPOSE OF REVIEW Issues relating to the disease are critical in the diagnosis, management, and prognostication of prostate cancer. RECENT FINDINGS New data have emerged regarding the disease of prostate cancer and its precursors. The diagnosis of prostate cancer on needle biopsy has been refined because of the recent discovery of alpha-methylacyl-CoA racemase, which preferentially labels adenocarcinoma of the prostate. Modifications and additions to the Gleason grading system were published based on a consensus conference of urological pathologists. Various models have been proposed using Gleason score, clinical findings, as well as measurements of tumor volume on needle biopsy to enhance the prediction in men undergoing radical prostatectomy and to predict "insignificance". Several studies have confirmed that certain findings in radical prostatectomy are adverse, yet conflicting studies were published as to the independent prognosis of tumor volume. The risk of cancer following a diagnosis of high-grade prostatic intraepithelial neoplasia on needle biopsy has decreased to the point at which this author does not recommend a routine repeat needle biopsy within the first year following the diagnosis of high-grade prostatic intraepithelial neoplasia. SUMMARY This review summarizes developments over the last year in the disease of prostate cancer and its precursors.
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Affiliation(s)
- Jonathan I Epstein
- Departments of Disease, Urology, and Oncology, The Johns Hopkins Hospital, 401 N. Broadway, Baltimore, MD 21231, USA.
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