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Mao Y, Xia T, Wang H, Wei X, Mu J. Evaluation of image-pro plus assisted superb microvascular imaging for differential diagnosis of renal masses. Urol Oncol 2024; 42:292.e9-292.e16. [PMID: 38760275 DOI: 10.1016/j.urolonc.2024.04.026] [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: 09/26/2023] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/19/2024]
Abstract
OBJECTIVE Previous research on diagnostic assessment by superb microvascular imaging (SMI) were based on qualitative or semi-quantitative assessments of vascularity, which may be subjective and unrepeatable by different sonographers. This study aimed to evaluate diagnostic performance of SMI Image-pro Plus (IPP) based vascular index (VI) for malignant renal masses. METHOD We retrospectively reviewed 222 masses in 214 patients who underwent SMI between August 2019 and August 2022 in our study. We evaluated the diagnostic performance of blood flow via Alder grade, VI based on both IPP and SMI. RESULTS The kappa consistency of the Adler grade and VI for renal masses was classified among different observers were 0.765 and 0.824. The intra-observers correlation ecoefficiency (ICC) were 0.727 and 0.874. Benign renal masses were mainly Adler grade 0, grade I, and grade II, VI was 4.30 ± 4.27 (Range 0.98-16.42); while malignant masses were mainly Adler grade III, VI was 14.95 ± 10.94 (Range 0.79-56.89). VI was higher in malignant than benign masses (t = 15.638, P < 0.01). Among the malignant masses, the mean VI in clear cell renal cell carcinoma was higher than that in papillary renal cell carcinoma and chromophobe renal cell carcinoma (F = 30.659, P < 0.01). The sensitivity, specificity and accuracy of SMI were 80.00%, 71.15%, and 78.64%, respectively. The sensitivity, specificity, and accuracy were 60.59%, 88.46%, and 80.18% by using a VI of 7.95 as the cutoff value to identify malignant lesions from benign masses yielded. VI had better diagnostic efficiency than ultrasonic characteristics and Adler grade in benign and malignant differential diagnosis (Z = 4.851, P < 0.01; Z = 2.732, P < 0.01). CONCLUSION VI was higher in malignant than benign in renal masses. In malignant masses, VI in CCRCC was higher than that in papillary renal cell carcinoma and ChRCC. As a noninvasive examination, it had important clinical significance in the differential diagnosis of renal masses. VI from IPP may assist sonographer in distinguish renal malignances as a quantitative tool for vascularity.
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Affiliation(s)
- Yiran Mao
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center for Cancer, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, China
| | - Tingting Xia
- Oncology Department, Zibo First Hospital, Zibo, Shandong province, China
| | - Hailing Wang
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center for Cancer, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, China
| | - Xi Wei
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center for Cancer, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, China
| | - Jie Mu
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center for Cancer, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, China.
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Masino F, Eusebi L, Bertolotto M, Pizzileo SM, Pizzolorusso F, Sortino G, Pitoni L, Santarelli S, Galosi AB, Guglielmi G. Contrast-enhanced ultrasound in renal cystic lesions: an update. J Med Ultrason (2001) 2024:10.1007/s10396-024-01489-x. [PMID: 39164480 DOI: 10.1007/s10396-024-01489-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 07/18/2024] [Indexed: 08/22/2024]
Abstract
This narrative review aims to describe the current status of contrast-enhanced ultrasound (CEUS) in characterizing renal cystic lesion. The imaging techniques usually performed for their evaluation are ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) with different criteria of application based on the individual case and the purpose of the examination. Generally, US, as a non-ionizing examination, is the first imaging modality performed and therefore the one that incidentally detects cystic lesions. CT is the most performed imaging modality for cystic lesion assessment before MRI evaluation. It provides better characterization and management and has been introduced into the Bosniak classification. In this context, CEUS is making its way for its characteristics and represents the emerging technique in this field. With these premises, the authors analyze the role of CEUS in the evaluation of renal cysts, starting with an explanation of the technique, describe its main advantages and limitations, and end with a discussion of its application in the Bosniak classification and management, following the current major guidelines.
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Affiliation(s)
- Federica Masino
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia, Foggia, Italy
| | - Laura Eusebi
- Radiology Unit, "Carlo Urbani" Hospital, Via Aldo Moro 52, 60035, Jesi, Ancona, Italy
| | - Michele Bertolotto
- Radiology Unit, "Cattinara" Hospital, Trieste University, Strada di Fiume 447, 34149, Trieste, Triestino, Italy
| | - Sara Maria Pizzileo
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia, Foggia, Italy
| | - Francesco Pizzolorusso
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia, Foggia, Italy
| | - Giuseppe Sortino
- Urology Unit, "Carlo Urbani" Hospital, Via Aldo Moro 52, 60035, Jesi, Ancona, Italy
| | - Lucia Pitoni
- Urology Unit, "Carlo Urbani" Hospital, Via Aldo Moro 52, 60035, Jesi, Ancona, Italy
| | - Stefano Santarelli
- Nephrology Unit, "Carlo Urbani" Hospital, Via Aldo Moro 52, 60035, Jesi, Ancona, Italy
| | - Andrea Benedetto Galosi
- Urology Unit, "Riuniti Torrette" Hospital di Ancona, Via Conca 71, 60126, Torrette, Ancona, Italy
| | - Giuseppe Guglielmi
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia, Foggia, Italy.
- Radiology Unit, "Dimiccoli" Hospital, Viale Ippocrate 15, 70051, Barletta, Barletta-Andria-Trani, Italy.
- Radiology Unit, IRCCS Casa Sollievo della Sofferenza" Hospital, Viale Cappuccini 1, 71013, San Giovanni Rotondo, Foggia, Italy.
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3
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Mach M, Maciejewski K, Ostrowski T, Maciąg R, Sajdek M, Gałązka Z. Endovascular Treatment of a Bilateral, Ruptured Angiomyolipoma in a Patient With Tuberous Sclerosis Complex. Cureus 2024; 16:e66200. [PMID: 39105203 PMCID: PMC11299878 DOI: 10.7759/cureus.66200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2024] [Indexed: 08/07/2024] Open
Abstract
A renal angiomyolipoma (AML) is a rare, usually benign tumor consisting of smooth muscle cells, abnormal blood vessels, and fat tissue. Although AMLs are often asymptomatic, they can present with flank pain, hematuria, and a palpable mass in the abdomen. A significant complication involves rupture and hemorrhage into the retroperitoneal cavity, which can be life-threatening. The treatment approach has evolved from surgical removal to more conservative management, such as nephron-sparing embolization and mammalian target of rapamycin (mTOR) inhibitors for tuberous sclerosis complex (TSC)-associated AML. In March 2024, a 36-year-old female patient diagnosed with TSC was admitted to our department and underwent several endovascular embolizations after a life-threatening hemorrhage from a ruptured multilocular AML. The treatment was successful, with complete exclusion of the AMLs from circulation and without any complications during the postoperative period. This case emphasizes the effectiveness of selective arterial embolization using the Onyx liquid embolic system in managing AMLs and highlights the importance of preserving renal function. Methods used in AML diagnosis include ultrasound and computed tomography scans, with magnetic resonance imaging and biopsy recommended in difficult cases. Treatment depends on aspects such as tumor size, symptoms, and patient's general condition, with options ranging from active surveillance for small, asymptomatic AMLs to more invasive procedures for larger, symptomatic tumors. The main goal is to minimize symptoms and preserve renal function.
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Affiliation(s)
- Maciej Mach
- Department of General, Vascular, Endocrine and Transplant Surgery, Medical University of Warsaw, Warsaw, POL
| | - Karol Maciejewski
- Department of General, Vascular, Endocrine and Transplant Surgery, Medical University of Warsaw, Warsaw, POL
| | - Tomasz Ostrowski
- Department of General, Vascular, Endocrine and Transplant Surgery, Medical University of Warsaw, Warsaw, POL
| | - Rafał Maciąg
- 2nd Department of Clinical Radiology, Medical University of Warsaw, Warsaw, POL
| | - Michał Sajdek
- 2nd Department of Clinical Radiology, Medical University of Warsaw, Warsaw, POL
| | - Zbigniew Gałązka
- Department of General, Vascular, Endocrine and Transplant Surgery, Medical University of Warsaw, Warsaw, POL
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Orso D, Peric D, Di Gioia CC, Comisso I, Bove T, Ban A, Fonda F, Federici N. Renal and Genitourinary Ultrasound Evaluation in Emergency and Critical Care: An Overview. Healthcare (Basel) 2024; 12:1356. [PMID: 38998890 PMCID: PMC11241743 DOI: 10.3390/healthcare12131356] [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: 06/03/2024] [Revised: 06/30/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024] Open
Abstract
Renal and genitourinary ultrasound are fundamental resources employed by emergency and critical care healthcare providers to make prompt diagnoses and perform ultrasound-guided procedures. At the bedside, ultrasound can aid in the diagnosis of relevant pathologies, such as post-renal obstruction or kidney stones, and life-threatening conditions such as aortic dissection or hemoperitoneum. A narrative overview was performed, providing an updated review of renal and genitourinary ultrasound for emergency and critical care healthcare providers, emphasizing its advantages and the latest advances in the field. A thorough summary that can be utilized as a guide for emergency and critical care healthcare providers is presented. The daily hemodynamic management of critically ill patients involves the implementation of new protocols, such as VexUS or the evaluation of the renal resistance index. The role of ultrasound in managing acute nephropathy and genitourinary issues is increasingly crucial given its bedside availability, thus this imaging modality not only facilitates the initiation of therapeutic interventions but also provides swift prognostic insights that are vital to provide tailored patient care. As further advances in ultrasound will arise, it is important for healthcare providers to foster the use of these technologies capable of improving patient outcomes.
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Affiliation(s)
- Daniele Orso
- Department of Emergency "Santa Maria della Misericordia", University Hospital of Udine, Azienda Sanitaria Universitaria Friuli Centrale, 33100 Udine, Italy
| | - Daniele Peric
- Department of Emergency, University Hospital of Trieste, Azienda Sanitaria Universitaria Giuliano-Isontina, 34128 Trieste, Italy
| | - Carmine Cristiano Di Gioia
- Department of Emergency Medicine, Community Hospital of Baggiovara (MO), Azienda Ospedaliero-Universitaria di Modena, 41125 Modena, Italy
| | - Irene Comisso
- Department of Emergency "Santa Maria della Misericordia", University Hospital of Udine, Azienda Sanitaria Universitaria Friuli Centrale, 33100 Udine, Italy
| | - Tiziana Bove
- Department of Emergency "Santa Maria della Misericordia", University Hospital of Udine, Azienda Sanitaria Universitaria Friuli Centrale, 33100 Udine, Italy
- Department of Medicine (DME), University of Udine, 33100 Udine, Italy
| | - Alessio Ban
- Department of Pediatrics, Community Hospital of Latisana (UD), Azienda Sanitaria Universitaria Friuli Centrale, 33100 Udine, Italy
| | - Federico Fonda
- Department of Emergency "Santa Maria della Misericordia", University Hospital of Udine, Azienda Sanitaria Universitaria Friuli Centrale, 33100 Udine, Italy
| | - Nicola Federici
- Department of Emergency "Santa Maria della Misericordia", University Hospital of Udine, Azienda Sanitaria Universitaria Friuli Centrale, 33100 Udine, Italy
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Zbroja M, Kuczyńska M, Drelich K, Mikos E, Zarajczyk A, Cheda M, Dąbrowska I, Drelich-Zbroja A. Contrast-Enhanced Ultrasound in the Diagnosis of Solid Renal Lesions. J Clin Med 2024; 13:3821. [PMID: 38999387 PMCID: PMC11242659 DOI: 10.3390/jcm13133821] [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: 05/09/2024] [Revised: 06/19/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
The availability of imaging methods has enabled increased detection of kidney lesions, which are a common clinical problem. It is estimated that more than half of patients over the age of 50 have at least one undetermined mass in the kidney. The appropriate characterization and diagnosis of lesions imaged in the kidney allows for proper therapeutic management. Previously, contrast-enhanced computed tomography (CT) and contrast-enhanced magnetic resonance imaging (MRI) have been used in their extended diagnosis. However, the limitations of these techniques, such as radiation exposure, renal toxicity, and allergies to contrast agents, must be considered. Contrast-enhanced ultrasound (CEUS) is increasingly being used as an examination to resolve interpretive doubts that arise with other diagnostic methods. Indeed, it can be considered both as a problem-solving technique for diagnosing and distinguishing lesions and as a technique used for observation in preservative treatment. Evaluation of the enhancement curve over time on CEUS examination can help to differentiate malignant renal cell carcinoma (RCC) subtypes that should be resected from benign lesions, such as oncocytoma or angiomyolipoma (AML), in which surgery can be avoided. It allows for distinguishing between benign and malignant tumors, renal and pseudotumors, and solid and cystic tumors. Therefore, with recent advances in ultrasound technology, CEUS has emerged as a fast, reliable, and cost-effective imaging tool in the preoperative evaluation and diagnosis of solid renal masses.
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Affiliation(s)
- Monika Zbroja
- Department of Pediatric Radiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Maryla Kuczyńska
- Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Katarzyna Drelich
- Students' Scientific Society at the Department of Pediatric Radiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Eryk Mikos
- Students' Scientific Society at the Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Agata Zarajczyk
- Students' Scientific Society at the Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Mateusz Cheda
- Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Izabela Dąbrowska
- Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Anna Drelich-Zbroja
- Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, 20-090 Lublin, Poland
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6
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Salles-Silva E, Lima EM, Amorim VB, Milito M, Parente DB. Clear cell likelihood score may improve diagnosis and management of renal masses. Abdom Radiol (NY) 2024:10.1007/s00261-024-04415-4. [PMID: 38900323 DOI: 10.1007/s00261-024-04415-4] [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: 04/29/2024] [Revised: 05/24/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024]
Abstract
The detection of solid renal masses has increased over time due to incidental findings during imaging studies conducted for unrelated medical conditions. Approximately 20% of lesions measuring less than 4 cm are benign and 80% are malignant. Clear cell renal cell carcinoma (ccRCC) is the most frequent among renal carcinomas, responsible for 65-80% of cases. The increased detection of renal masses facilitates early diagnosis and treatment. However, it also leads to more invasive interventions, which result in higher morbidity and costs. Currently, only histological analysis can offer an accurate diagnosis. Surgical nephron loss significantly elevates morbidity and mortality rates. Active surveillance represents a conservative management approach for patients diagnosed with a solid renal mass that is endorsed by both American Urological Association and the European Society for Medical Oncology. However, active surveillance is used in a minority of patients and varies across institutions. The lack of clinical studies using a standardized approach to incidentally detected small renal masses precludes the widespread use of active surveillance. Hence, there is an urgent need for better patient selection, distinguishing those who require surgery from those suitable for active surveillance. The clear cell likelihood score (ccLS) represents a novel MRI tool for assessing the probability of a renal mass being a ccRCC. In this study, we present a comprehensive review of renal masses and their evaluation using the ccLS to facilitate shared decision between urologists and patients.
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Affiliation(s)
- Eleonora Salles-Silva
- Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Grupo Fleury, Rio de Janeiro, RJ, Brazil
| | - Elissandra Melo Lima
- Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Grupo Fleury, Rio de Janeiro, RJ, Brazil
| | - Viviane Brandão Amorim
- Grupo Fleury, Rio de Janeiro, RJ, Brazil
- Brazilian National Cancer Institute, Rio de Janeiro, RJ, Brazil
| | - Miguel Milito
- Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Daniella Braz Parente
- Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
- Grupo Fleury, Rio de Janeiro, RJ, Brazil.
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7
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Endrikat J, Gutberlet M, Barkhausen J, Schöckel L, Bhatti A, Harz C, Hoffmann KT. Clinical Efficacy of Gadobutrol: Review of Over 25 Years of Use Exceeding 100 Million Administrations. Invest Radiol 2024; 59:345-358. [PMID: 37972293 DOI: 10.1097/rli.0000000000001041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
BACKGROUND Gadobutrol has been administered more than 100 million times worldwide, since February 1998, that is, over the last 25 years. Numerous clinical studies in a broad range of indications document the long-term experience with gadobutrol. OBJECTIVE The aim of this study was to provide a literature-based overview on gadobutrol's efficacy in 9 approved indications and use in children. MATERIALS AND METHODS Efficacy results in patients of all age groups including sensitivity, specificity, accuracy, and positive/negative predictive values were identified by a systematic literature search on Embase until December 31, 2022. Nine approved indications were considered: central nervous system (CNS), magnetic resonance angiography (MRA), breast, heart, prostate, kidney, liver, musculoskeletal, whole body, and various indications in children. RESULTS Sixty-five publications (10 phase III, 2 phase IV, 53 investigator-initiated studies) reported diagnostic efficacy results obtained from 7806 patients including 271 children, at 369 centers worldwide. Indication-specific sensitivity ranges were 59%-98% (CNS), 53%-100% (MRA), 80%-100% (breast), 64%-90% (heart), 64%-96% (prostate), 71-85 (kidney), 79%-100% (liver), 53%-98% (musculoskeletal), and 78%-100% (children). Indication-specific specificity ranges were 75%-100% (CNS), 64%-99% (MRA), 58%-98% (breast), and 47%-100% (heart). CONCLUSIONS The evaluated body of evidence, consisting of 65 studies with 7806 patients, including 271 children and 7535 adults, showed that gadobutrol is an efficacious magnetic resonance imaging contrast agent for all age groups in various approved indications throughout the whole body.
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Affiliation(s)
- Jan Endrikat
- From the Radiology, Bayer AG, Berlin, Germany (J.E., L.S., C.H.); Department of Gynecology, Obstetrics, and Reproductive Medicine, University Medical School of Saarland, Homburg/Saar, Germany (J.E.); Department of Diagnostic and Interventional Radiology, University of Leipzig, Heart Center, Leipzig, Germany (M.G.); Department of Radiology and Nuclear Medicine, University Hospital Schleswig Holstein-Campus Luebeck, Luebeck, Germany (J.B.); Bayer US LLC, Benefit-Risk Management Pharmacovigilance, Whippany, NJ (A.B.); and Department of Neuroradiology, University of Leipzig, Leipzig, Germany (K.-T.H.)
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8
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Dev R, Chauhan U, Nandolia KK. Multifaceted Imaging of Renal Lesions With an Emphasis on Cross-Sectional Imaging. Cureus 2024; 16:e59956. [PMID: 38854236 PMCID: PMC11161908 DOI: 10.7759/cureus.59956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2024] [Indexed: 06/11/2024] Open
Abstract
Introduction Renal lesions are common findings encountered in cross-sectional imaging. Ultrasonography (USG), computed tomography (CT), and magnetic resonance imaging (MRI) are available modalities for evaluating renal lesions. The Bosniak classification system aids in classifying a renal lesion into a particular category based on various imaging characteristics on contrast-enhanced CT (CECT). Materials and methods The CT report archives were searched for the keyword 'Bosniak' lesions, and six illustrative cases were selected to be included in the review. Results Six cases under Bosniak categories I to IV were included in the review. Operative follow-ups were added in cases where patients underwent surgery. Discussion We have reviewed the imaging features of various renal lesions with cross-sectional modalities, namely CT and MRI, with special emphasis on the Bosniak classification system, including its amendments. Conclusion The Bosniak system is widely used to classify and characterize renal lesions. The authors have presented a scoping review of the features of renal lesions and the Bosniak system.
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Affiliation(s)
- Rahul Dev
- Diagnostic and Intervention Radiology, All India Institute of Medical Sciences, Rishikesh, IND
| | - Udit Chauhan
- Diagnostic and Intervention Radiology, All India Institute of Medical Sciences, Rishikesh, IND
| | - Khanak K Nandolia
- Diagnostic and Intervention Radiology, All India Institute of Medical Sciences, Rishikesh, IND
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Iorio L, Pizzi M, Cecchin D, Davanzo F, Ghirardello A, Dei Tos AP, Doria A, Padoan R. Cutting-Edge Strategies for Renal Tumour-like Lesions in Granulomatosis with Polyangiitis: A Systematic Review. Diagnostics (Basel) 2024; 14:566. [PMID: 38473038 DOI: 10.3390/diagnostics14050566] [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: 02/06/2024] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Granulomatosis with polyangiitis (GPA) is characterised by granulomatous inflammation and small-to-medium vessel necrotising vasculitis, mainly affecting respiratory tract and kidneys. Renal involvement presenting as tumour-like lesions poses diagnostic and treatment challenges. METHODS Following the observation of a GPA patient presenting with multiple renal tumour-like lesions, we conducted a systematic literature review on MEDLINE/PubMed, EMBASE, and Cochrane databases. Data gathered from the literature were analysed to summarise the diagnostic approach, management, and outcome of renal GPA-related tumour-like lesions. RESULTS a 49-year-old female presented with persistent constitutional symptoms and multiple bilateral renal lesions. Renal biopsy showed chronic interstitial inflammation with necrotising granulomas. Laboratory tests disclosed positive anti-proteinase 3 (PR3) anti-neutrophil cytoplasmic antibody (ANCA) leading to a final diagnosis of GPA. She was effectively treated with high-dose glucocorticoids and rituximab. Literature search yielded 41 articles, concerning 42 GPA patients with renal masses, presenting bilaterally in 23.8% of the cases. Positive PR3-ANCA was observed in 86.5% of the cases. Half of 42 patients showed kidney abnormalities. Treatment with glucocorticoids (83.3%) and immunosuppressive agents (80.9%) resulted in an overall good remission rate and favourable prognosis. CONCLUSIONS GPA should be considered in the differential diagnoses of kidney tumour-like lesions. The diagnosis is challenging, and histological examination greatly contributes to the diagnostic work-up.
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Affiliation(s)
- Luca Iorio
- Rheumatology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Marco Pizzi
- Surgical Pathology and Cytopathology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Diego Cecchin
- Nuclear Medicine Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Federica Davanzo
- Rheumatology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Anna Ghirardello
- Rheumatology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Angelo Paolo Dei Tos
- Surgical Pathology and Cytopathology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Andrea Doria
- Rheumatology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
| | - Roberto Padoan
- Rheumatology Unit, Department of Medicine DIMED, University of Padua, 35121 Padua, Italy
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Fateri C, Roth B, Rao S, Peta A, Limfueco L, Bui TL, Kar N, Glavis-Bloom J, Cumpanas A, Landman J, Houshyar R. Utilization of Re-VASC, the Novel Retroperitoneal Neovascularity Scoring System, for Characterization of T1a Small Renal Masses. J Endourol 2024; 38:301-305. [PMID: 38149604 DOI: 10.1089/end.2023.0421] [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] [Indexed: 12/28/2023] Open
Abstract
Purpose: Early characterization of small (T1a, <4 cm) renal masses is imperative for patient care and treatment planning. Renal biopsy is a sensitive and specific procedure that can accurately differentiate small renal masses as malignant or benign. However, it is an invasive procedure with a nonnegligible complication rate and is not performed routinely at most institutions. In this study, we sought to apply the Retroperitoneal Vascularity Assessment and Scoring in Carcinoma (Re-VASC) scoring system to T1a renal masses and analyzed whether it could differentiate these masses as benign or malignant. Methods: We obtained Institutional Review Board approval to retrospectively examine the records of all patients who presented to our single, urban academic referral center for surgical treatment of renal cell carcinoma (RCC). For the malignant group, patients with a diagnosis of T1a RCC from pathologic evaluation were included. Additionally, patients with a histopathological diagnosis of a T1a nonmalignant renal mass (fat poor-angiomyolipoma or oncocytoma) were included in our benign group. Results: This study includes 57 benign and 69 malignant T1a renal tumors. Average size for benign and malignant masses were 2.47 and 2.63, respectively (p = 0.267). Analysis demonstrated no significant difference between both groups in terms of sex, laterality, or size. The average Re-VASC score of benign and malignant masses was 0.175 and malignant masses was 0.784, respectively (p < 0.001). Additionally, the Re-VASC score was independently associated with malignancy with an odds ratio of 2.223 (p = 0.0109). Conclusion: The Re-VASC scoring system exhibits significantly greater values for malignant T1a renal masses when compared to benign masses. As a result, it shows promise as an adjunctive tool to renal biopsy for clinical decision-making. Further assessment of Re-VASC's true efficacy as a diagnostic marker will include prospective evaluation of a larger multicenter population.
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Affiliation(s)
- Cameron Fateri
- Department of Radiology and University of California, Irvine, Orange, California, USA
| | - Bradley Roth
- Department of Radiology and University of California, Irvine, Orange, California, USA
| | - Sriram Rao
- Department of Radiology and University of California, Irvine, Orange, California, USA
| | - Akhil Peta
- Department of Urology, University of California, Irvine, Orange, California, USA
| | - Luke Limfueco
- Department of Urology, University of California, Irvine, Orange, California, USA
| | - Thanh-Lan Bui
- Department of Urology, University of California, Irvine, Orange, California, USA
| | - Nina Kar
- Department of Urology, University of California, Irvine, Orange, California, USA
| | - Justin Glavis-Bloom
- Department of Radiology and University of California, Irvine, Orange, California, USA
| | - Andrei Cumpanas
- Department of Urology, University of California, Irvine, Orange, California, USA
| | - Jaime Landman
- Department of Radiology and University of California, Irvine, Orange, California, USA
- Department of Urology, University of California, Irvine, Orange, California, USA
| | - Roozbeh Houshyar
- Department of Radiology and University of California, Irvine, Orange, California, USA
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Bolocan VO, Diaconu GF, Secareanu M, Manolescu LSC, Jinga V, Costache MG, Popa GA, Medar C. Renal Sinus Pathologies Depicted by CT Imaging: A Pictorial Review. Cureus 2024; 16:e57087. [PMID: 38681436 PMCID: PMC11052927 DOI: 10.7759/cureus.57087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
Diverse conditions comprise the spectrum of renal sinus pathologies, which have diagnostic and therapeutic implications for patients. Using CT imaging as a lens, this exhaustive review examines the representation of these pathologies. The article begins with a concise synopsis of renal anatomy and the specialized CT methodologies utilized to achieve excellent visualization. Transformational cell carcinoma, leiomyosarcoma, renal cell carcinoma, multilocular nephroma, and lymphoma are among the tumoral origins of the renal sinus pathologies that are investigated. Further, vascular pathologies including fistulas, hematomas, and aneurysms are included in the discourse, along with parapelvic and peripelvic cysts, and lipomatosis. In addition to urolithiasis and encrusted uretero-pyelitis, the review examines the consequences of metal toxicity and non-neoplastic conditions. With a focus on critical CT imaging findings that aid in the provision of an accurate diagnosis, every pathology is meticulously examined. With the intention of improving clinical decision-making and patient care, this article intends to function as a valuable resource for radiologists, clinicians, and researchers who are engaged in the interpretation and comprehension of renal sinus pathologies.
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Affiliation(s)
- Vlad-Octavian Bolocan
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
| | - Georgian-Florentin Diaconu
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
| | - Mihaela Secareanu
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
| | - Loredana Sabina Cornelia Manolescu
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
| | - Viorel Jinga
- Department of Urology, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
- Department of Urology, Faculty of Medicine, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
- Medical Sciences Section, Academy of Romanian Scientists, Bucharest, ROU
| | - Maria-Glencora Costache
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
| | - Gelu Adrian Popa
- Department of Radiology and Medical Imaging, Clinical Hospital of Emergency "Sf Ioan", Bucharest, ROU
| | - Cosmin Medar
- Department of Clinical Laboratory of Radiology and Medical Imaging, Clinical Hospital "Prof. Dr. Theodor Burghele", Bucharest, ROU
- Department of Fundamental Sciences, Faculty of Midwifery and Nursing, University of Medicine and Pharmacy "Carol Davila", Bucharest, ROU
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12
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Iovino F, Mongardini FM, Balestrucci G, Regginelli A, Ronchi A, Ferrara MG, Parisi S, Gambardella C, Lucido FS, Tolone S, Ruggiero R, Docimo L. Large renal lymphoma in a patient with horseshoe kidney: A case report. Oncol Lett 2024; 27:46. [PMID: 38115986 PMCID: PMC10728691 DOI: 10.3892/ol.2023.14180] [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: 06/23/2023] [Accepted: 09/28/2023] [Indexed: 12/21/2023] Open
Abstract
Horseshoe kidney (HSK) is the most common renal fusion anomaly. It frequently consists of kidney fusion in the lower pole across the midline and occurs during embryogenesis. The incidence of malignancies in HSKs can be 3-4 times higher than that in normal kidneys. A 69-year-old man with a voluminous right kidney neoplasm in HSK and a single omolateral axillary lymphadenopathy underwent complete excision of right axillary lymphadenopathy and ultrasound-guided percutaneous biopsy of the right kidney expansive lesion. The diagnosis of non-Hodgkin's B cell lymphoma both in HSK and right axilla was made. We report this case to raise awareness among physicians regarding the importance of a correct clinical evaluation and diagnostic workup so as to avoid surgery, which is not easy and without complications, in patients with this kidney anomaly. Primary renal lymphoma should also be included among possible neoplasms of HSK. Renal biopsy should always be recommended in cases where atypical findings are obtained from imaging techniques and when its outcome can impact clinical decision-making. In the present case, biopsy was performed, and thus, nephrectomy was avoided and specific medical therapy was quickly started.
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Affiliation(s)
- Francesco Iovino
- Department of Translational Medical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Federico Maria Mongardini
- Department of Translational Medical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Giovanni Balestrucci
- Department of Precision Medicine, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Alfonso Regginelli
- Department of Precision Medicine, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Andrea Ronchi
- Department of Mental and Physical Health and Preventive Medicine, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Maria Giovanna Ferrara
- Department of Precision Medicine, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Simona Parisi
- Department of Advanced Medical and Surgical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Claudio Gambardella
- Department of Advanced Medical and Surgical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Francesco Saverio Lucido
- Department of Advanced Medical and Surgical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Salvatore Tolone
- Department of Advanced Medical and Surgical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Roberto Ruggiero
- Department of Advanced Medical and Surgical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
| | - Ludovico Docimo
- Department of Advanced Medical and Surgical Sciences, School of Medicine, University of Campania Luigi Vanvitelli, I-80131 Naples, Italy
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13
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Trovato P, Simonetti I, Morrone A, Fusco R, Setola SV, Giacobbe G, Brunese MC, Pecchi A, Triggiani S, Pellegrino G, Petralia G, Sica G, Petrillo A, Granata V. Scientific Status Quo of Small Renal Lesions: Diagnostic Assessment and Radiomics. J Clin Med 2024; 13:547. [PMID: 38256682 PMCID: PMC10816509 DOI: 10.3390/jcm13020547] [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: 11/01/2023] [Revised: 01/05/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Background: Small renal masses (SRMs) are defined as contrast-enhanced renal lesions less than or equal to 4 cm in maximal diameter, which can be compatible with stage T1a renal cell carcinomas (RCCs). Currently, 50-61% of all renal tumors are found incidentally. Methods: The characteristics of the lesion influence the choice of the type of management, which include several methods SRM of management, including nephrectomy, partial nephrectomy, ablation, observation, and also stereotactic body radiotherapy. Typical imaging methods available for differentiating benign from malignant renal lesions include ultrasound (US), contrast-enhanced ultrasound (CEUS), computed tomography (CT), and magnetic resonance imaging (MRI). Results: Although ultrasound is the first imaging technique used to detect small renal lesions, it has several limitations. CT is the main and most widely used imaging technique for SRM characterization. The main advantages of MRI compared to CT are the better contrast resolution and tissue characterization, the use of functional imaging sequences, the possibility of performing the examination in patients allergic to iodine-containing contrast medium, and the absence of exposure to ionizing radiation. For a correct evaluation during imaging follow-up, it is necessary to use a reliable method for the assessment of renal lesions, represented by the Bosniak classification system. This classification was initially developed based on contrast-enhanced CT imaging findings, and the 2019 revision proposed the inclusion of MRI features; however, the latest classification has not yet received widespread validation. Conclusions: The use of radiomics in the evaluation of renal masses is an emerging and increasingly central field with several applications such as characterizing renal masses, distinguishing RCC subtypes, monitoring response to targeted therapeutic agents, and prognosis in a metastatic context.
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Affiliation(s)
- Piero Trovato
- Radiology Division, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy; (P.T.); (I.S.); (S.V.S.); (A.P.); (V.G.)
| | - Igino Simonetti
- Radiology Division, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy; (P.T.); (I.S.); (S.V.S.); (A.P.); (V.G.)
| | - Alessio Morrone
- Division of Radiology, Università degli Studi della Campania Luigi Vanvitelli, 80138 Naples, Italy;
| | - Roberta Fusco
- Medical Oncology Division, Igea SpA, 80013 Naples, Italy
- Italian Society of Medical and Interventional Radiology (SIRM), SIRM Foundation, Via della Signora 2, 20122 Milan, Italy
| | - Sergio Venanzio Setola
- Radiology Division, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy; (P.T.); (I.S.); (S.V.S.); (A.P.); (V.G.)
| | - Giuliana Giacobbe
- General and Emergency Radiology Department, “Antonio Cardarelli” Hospital, 80131 Naples, Italy;
| | - Maria Chiara Brunese
- Diagnostic Imaging Section, Department of Medical and Surgical Sciences & Neurosciences, University of Molise, 86100 Campobasso, Italy;
| | - Annarita Pecchi
- Department of Radiology, University of Modena and Reggio Emilia, 41121 Modena, Italy;
| | - Sonia Triggiani
- Postgraduate School of Radiodiagnostics, University of Milan, 20122 Milan, Italy; (S.T.); (G.P.)
| | - Giuseppe Pellegrino
- Postgraduate School of Radiodiagnostics, University of Milan, 20122 Milan, Italy; (S.T.); (G.P.)
| | - Giuseppe Petralia
- Department of Medical Imaging and Radiation Sciences, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141 Milan, Italy;
| | - Giacomo Sica
- Radiology Unit, Monaldi Hospital, Azienda Ospedaliera dei Colli, 80131 Naples, Italy;
| | - Antonella Petrillo
- Radiology Division, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy; (P.T.); (I.S.); (S.V.S.); (A.P.); (V.G.)
| | - Vincenza Granata
- Radiology Division, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy; (P.T.); (I.S.); (S.V.S.); (A.P.); (V.G.)
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14
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Wu Q. Application of different ultrasound techniques in diagnosing renal cystic lesions: A systematic review and meta-analysis. Asian J Surg 2023; 46:5548-5550. [PMID: 37596221 DOI: 10.1016/j.asjsur.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/06/2023] [Indexed: 08/20/2023] Open
Affiliation(s)
- Qian Wu
- Department of Ultrasound, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000, China.
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15
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Walmer RW, Ritter VS, Sridharan A, Kasoji SK, Altun E, Lee E, Olinger K, Wagner S, Radhakrishna R, Johnson KA, Rathmell WK, Qaqish B, Dayton PA, Chang EH. The Performance of Flash Replenishment Contrast-Enhanced Ultrasound for the Qualitative Assessment of Kidney Lesions in Patients with Chronic Kidney Disease. J Clin Med 2023; 12:6494. [PMID: 37892632 PMCID: PMC10607866 DOI: 10.3390/jcm12206494] [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: 08/22/2023] [Revised: 09/26/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
We investigated the accuracy of CEUS for characterizing cystic and solid kidney lesions in patients with chronic kidney disease (CKD). Cystic lesions are assessed using Bosniak criteria for computed tomography (CT) and magnetic resonance imaging (MRI); however, in patients with moderate to severe kidney disease, CT and MRI contrast agents may be contraindicated. Contrast-enhanced ultrasound (CEUS) is a safe alternative for characterizing these lesions, but data on its performance among CKD patients are limited. We performed flash replenishment CEUS in 60 CKD patients (73 lesions). Final analysis included 53 patients (63 lesions). Four readers, blinded to true diagnosis, interpreted each lesion. Reader evaluations were compared to true lesion classifications. Performance metrics were calculated to assess malignant and benign diagnoses. Reader agreement was evaluated using Bowker's symmetry test. Combined reader sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for diagnosing malignant lesions were 71%, 75%, 45%, and 90%, respectively. Sensitivity (81%) and specificity (83%) were highest in CKD IV/V patients when grouped by CKD stage. Combined reader sensitivity, specificity, PPV, and NPV for diagnosing benign lesions were 70%, 86%, 91%, and 61%, respectively. Again, in CKD IV/V patients, sensitivity (81%), specificity (95%), and PPV (98%) were highest. Inter-reader diagnostic agreement varied from 72% to 90%. In CKD patients, CEUS is a potential low-risk option for screening kidney lesions. CEUS may be particularly beneficial for CKD IV/V patients, where kidney preservation techniques are highly relevant.
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Affiliation(s)
- Rachel W. Walmer
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, USA; (A.S.)
| | - Victor S. Ritter
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Anush Sridharan
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, USA; (A.S.)
- Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Sandeep K. Kasoji
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, USA; (A.S.)
- Triangle Biotechnology, Durham, NC 27709, USA
| | - Ersan Altun
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (E.A.); (K.O.)
| | - Ellie Lee
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (E.A.); (K.O.)
| | - Kristen Olinger
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (E.A.); (K.O.)
| | - Sean Wagner
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (E.A.); (K.O.)
| | - Roshni Radhakrishna
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA (E.H.C.)
| | - Kennita A. Johnson
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, USA; (A.S.)
| | | | - Bahjat Qaqish
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Paul A. Dayton
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, USA; (A.S.)
| | - Emily H. Chang
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA (E.H.C.)
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16
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Liu C, Qi Y, Zhang Y, Yang X. Primary neuroendocrine neoplasms of the kidney: a case report and literature review. J Int Med Res 2023; 51:3000605231198384. [PMID: 37773688 PMCID: PMC10541770 DOI: 10.1177/03000605231198384] [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: 03/14/2023] [Accepted: 08/14/2023] [Indexed: 10/01/2023] Open
Abstract
Primary kidney neuroendocrine tumors (NETs) are rare renal malignancies. However, detecting and monitoring neuroendocrine neoplasms remains challenging because of their nonspecific nature. We herein present a case involving a 53-year-old woman who experienced episodes of intermittent abdominal pain, dizziness, and nausea for a period of 5 days. Computed tomography urography revealed a small (approximately 19- × 16-mm) nodular shadow in the left kidney. The nodular shadow exhibited slightly lower density than the surrounding tissue as well as enhancement, with a portion protruding into the renal sinus region. Histological and immunohistochemical analyses of the biopsy specimen from the mass indicated a well-differentiated NET. After analysis of this case, we performed a literature review and herein discuss various techniques for imaging and pathological diagnosis of renal NETs. Additionally, we provide insights into the treatment options and prognosis for affected patients. By combining this case study with the existing published literature, we aim to offer a valuable reference for clinicians treatment patients diagnosed with renal NETs.
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Affiliation(s)
- Changxun Liu
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People’s Republic of China
| | - Yixin Qi
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People’s Republic of China
| | - Youzhi Zhang
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People’s Republic of China
| | - Xiaokun Yang
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People’s Republic of China
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17
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Akıncı Ö, Türkoglu F, Nalbant MO, Öner Ö, İnci E. The Effectiveness of Volumetric MRI Histogram Analysis in Renal Cell Carcinoma. Acad Radiol 2023; 30 Suppl 1:S278-S285. [PMID: 37105802 DOI: 10.1016/j.acra.2023.03.029] [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: 02/16/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023]
Abstract
RATIONALE AND OBJECTIVES This study investigated the utility of histogram parameters derived from diffusion-weighted imaging (DWI) for evaluating renal cell carcinoma (RCC) grading prior to surgery. MATERIALS AND METHODS This retrospective study included 88 patients who were histopathologically diagnosed with RCC and underwent magnetic resonance imaging (MRI) examinations. The patients were divided into two groups as well-differentiated (Group 1) and poorly differentiated (Group 2). Demographic data, preoperative MRI findings, MRI apparent diffusion coefficient (ADC) histogram analyzes, operation types, postoperative histopathological data and cancer stages of the patients were recorded. The histogram parameters of ADC values, comprising the mean, minimum, maximum, 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentiles, as well as skewness, kurtosis, and variance, were calculated. RESULTS The study included 59 males and 29 women with an average age of 56.21 ± 1.33 years. There were 52 patients in Group 1 and 36 patients in Group 2. The ADCmin, ADCmean, ADCmax, 5th, 10th, 25th, 50th, 75th, 90th, and 95th percentiles of ADC values of the poorly differentiated group were all lower than those of the well-differentiated group. ADCmin and the 5th percentile of ADC values, as well as ADCmean and the 10th, 25th, 50th, and 75th percentiles of ADC values, showed a statistically significant difference (p < 0.05). The AUC, sensitivity, and specificity of the ADCmin value were 0.703, 56.3%, and 75.7%, respectively. CONCLUSION The present study indicated that histogram parameters generated from DWI were capable of differentiating between high-grade and low-grade RCC.
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Affiliation(s)
- Özlem Akıncı
- Bakırköy Dr Sadi Konuk Training and Research Hospital, Department of Radiology, Istanbul, Turkey.
| | - Furkan Türkoglu
- Bakırköy Dr Sadi Konuk Training and Research Hospital, Department of Radiology, Istanbul, Turkey
| | - Mustafa Orhan Nalbant
- Bakırköy Dr Sadi Konuk Training and Research Hospital, Department of Radiology, Istanbul, Turkey
| | - Özkan Öner
- Bakırköy Dr Sadi Konuk Training and Research Hospital, Department of Radiology, Istanbul, Turkey
| | - Ercan İnci
- Bakırköy Dr Sadi Konuk Training and Research Hospital, Department of Radiology, Istanbul, Turkey
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18
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Kumar S, Virarkar M, Vulasala SSR, Daoud T, Ozdemir S, Wieseler C, Vincety-Latorre F, Gopireddy DR, Bhosale P, Lall C. Magnetic Resonance Imaging Virtual Biopsy of Common Solid Renal Masses-A Pictorial Review. J Comput Assist Tomogr 2023; 47:186-198. [PMID: 36790908 DOI: 10.1097/rct.0000000000001424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
ABSTRACT The expanded application of radiologic imaging resulted in an increased incidence of renal masses in the recent decade. Clinically, it is difficult to determine the malignant potential of the renal masses, thus resulting in complex management. Image-guided biopsies are the ongoing standard of care to identify molecular variance but are limited by tumor accessibility and heterogeneity. With the evolving importance of individualized cancer therapies, radiomics has displayed promising results in the identification of tumoral mutation status on routine imaging. This article discusses how magnetic resonance imaging features can guide a radiologist toward identifying renal mass characteristics.
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Affiliation(s)
- Sindhu Kumar
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
| | - Mayur Virarkar
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
| | - Sai Swarupa R Vulasala
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
| | - Taher Daoud
- Division of Diagnostic Imaging, Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Savas Ozdemir
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
| | - Carissa Wieseler
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
| | | | - Dheeraj R Gopireddy
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
| | - Priya Bhosale
- Division of Diagnostic Imaging, Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Chandana Lall
- From the Department of Radiology, University of Florida College of Medicine, Jacksonville, FL
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19
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Almalki YE, Basha MAA, Refaat R, Alduraibi SK, Abdalla AAEHM, Yousef HY, Zaitoun MMA, Elsayed SB, Mahmoud NEM, Alayouty NA, Ali SA, Alnaggar AA, Saber S, El-Maghraby AM, Elsheikh AM, Radwan MHSS, Abdelmegid AGI, Aly SA, Shanab WSA, Obaya AA, Abdelhai SF, Elshorbagy S, Haggag YM, Mokhtar HM, Sabry NM, Altohamy JI, Abouelkheir RT, Omran T, Shalan A, Algazzar YH, Metwally MI. Bosniak classification version 2019: a prospective comparison of CT and MRI. Eur Radiol 2023; 33:1286-1296. [PMID: 35962816 DOI: 10.1007/s00330-022-09044-3] [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: 03/25/2022] [Revised: 06/13/2022] [Accepted: 07/19/2022] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To assess the diagnostic accuracy and agreement of CT and MRI in terms of the Bosniak classification version 2019 (BCv2019). MATERIALS AND METHODS A prospective multi-institutional study enrolled 63 patients with 67 complicated cystic renal masses (CRMs) discovered during ultrasound examination. All patients underwent CT and MRI scans and histopathology. Three radiologists independently assessed CRMs using BCv2019 and assigned Bosniak class to each CRM using CT and MRI. The final analysis included 60 histopathologically confirmed CRMs (41 were malignant and 19 were benign). RESULTS Discordance between CT and MRI findings was noticed in 50% (30/60) CRMs when data were analyzed in terms of the Bosniak classes. Of these, 16 (53.3%) were malignant. Based on consensus reviewing, there was no difference in the sensitivity, specificity, and accuracy of the BCv2019 with MRI and BCv2019 with CT (87.8%; 95% CI = 73.8-95.9% versus 75.6%; 95% CI = 59.7-87.6%; p = 0.09, 84.2%; 95% CI = 60.4-96.6% versus 78.9%; 95% CI = 54.4-93.9%; p = 0.5, and 86.7%; 95% CI = 64.0-86.6% versus 76.7%; 95% CI = 75.4-94.1%; p = 0.1, respectively). The number and thickness of septa and the presence of enhanced nodules accounted for the majority of variations in Bosniak classes between CT and MRI. The inter-reader agreement (IRA) was substantial for determining the Bosniak class in CT and MRI (k = 0.66; 95% CI = 0.54-0.76, k = 0.62; 95% CI = 0.50-0.73, respectively). The inter-modality agreement of the BCv219 between CT and MRI was moderate (κ = 0.58). CONCLUSION In terms of BCv2019, CT and MRI are comparable in the classification of CRMs with no significant difference in diagnostic accuracy and reliability. KEY POINTS • There is no significant difference in the sensitivity, specificity, and accuracy of the BCv2019 with MRI and BCv2019 with CT. • The number of septa and their thickness and the presence of enhanced nodules accounted for the majority of variations in Bosniak classes between CT and MRI. • The inter-reader agreement was substantial for determining the Bosniak class in CT and MRI and the inter-modality agreement of the BCv219 between CT and MRI was moderate.
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Affiliation(s)
- Yassir Edrees Almalki
- Division of Radiology, Department of Internal Medicine, Medical College, Najran University, Najran, Kingdom of Saudi Arabia
| | | | - Rania Refaat
- Department of Diagnostic Radiology, Intervention and Molecular Imaging, Faculty of Human Medicine, Ain Shams University, Cairo, Egypt
| | - Sharifa Khalid Alduraibi
- Department of Radiology, College of Medicine, Qassim University, Buraidah, Kingdom of Saudi Arabia
| | | | - Hala Y Yousef
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed M A Zaitoun
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Saeed Bakry Elsayed
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Nader E M Mahmoud
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Nader Ali Alayouty
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Susan Adil Ali
- Department of Diagnostic Radiology, Intervention and Molecular Imaging, Faculty of Human Medicine, Ain Shams University, Cairo, Egypt
| | - Ahmad Abdullah Alnaggar
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Sameh Saber
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | | | - Amgad M Elsheikh
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | | | | | - Sameh Abdelaziz Aly
- Department of Diagnostic Radiology, Faculty of Human Medicine, Benha University, Benha, Egypt
| | - Waleed S Abo Shanab
- Department of Diagnostic Radiology, Faculty of Human Medicine, Port Said University, Port Said, Egypt
| | - Ahmed Ali Obaya
- Department of Clinical Oncology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Shaimaa Farouk Abdelhai
- Department of Clinical Oncology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Shereen Elshorbagy
- Department of Medical Oncology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Yasser M Haggag
- Department of Urology, Faculty of Human Medicine, Al Azhar University, Cairo, Egypt
| | - Hwaida M Mokhtar
- Department of Diagnostic Radiology, Faculty of Human Medicine, Tanta University, Tanta, Egypt
| | - Nesreen M Sabry
- Department of Clinical Oncology, Faculty of Human Medicine, Tanta University, Tanta, Egypt
| | - Jehan Ibrahim Altohamy
- Department of Diagnostic Radiology, National Institute of Urology and Nephrology, Cairo, Egypt
| | - Rasha Taha Abouelkheir
- Department of Diagnostic Radiology, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Tawfik Omran
- Department of Diagnostic Radiology, Faculty of Human Medicine, Helwan University, Cairo, Egypt
| | - Ahmed Shalan
- Department of Diagnostic Radiology, Faculty of Human Medicine, Benha University, Benha, Egypt
| | | | - Maha Ibrahim Metwally
- Department of Diagnostic Radiology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
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20
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The Role of CT Imaging in Characterization of Small Renal Masses. Diagnostics (Basel) 2023; 13:diagnostics13030334. [PMID: 36766439 PMCID: PMC9914376 DOI: 10.3390/diagnostics13030334] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/02/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
Small renal masses (SRM) are increasingly detected incidentally during imaging. They vary widely in histology and aggressiveness, and include benign renal tumors and renal cell carcinomas that can be either indolent or aggressive. Imaging plays a key role in the characterization of these small renal masses. While a confident diagnosis can be made in many cases, some renal masses are indeterminate at imaging and can present as diagnostic dilemmas for both the radiologists and the referring clinicians. This review focuses on CT characterization of small renal masses, perhaps helping us understand small renal masses. The following aspects were considered for the review: (a) assessing the presence of fat, (b) assessing the enhancement, (c) differentiating renal tumor subtype, and (d) identifying valuable CT signs.
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21
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Li CX, Lu Q, Li C, Wang WP, Huang BJ. Blood Perfusion Characteristics of Renal Cell Carcinoma in the Process of Tumor Growth: Monitored With Multiple Sonographic Modalities. Ultrasound Q 2022; 38:334-340. [PMID: 36165634 DOI: 10.1097/ruq.0000000000000619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Tumor angiogenesis is an essential factor for tumor growth and antiangiogenic therapy. To simulate the blood perfusion characteristics of human renal cell carcinoma (RCC) longitudinally in the process of tumor growth, multimodal ultrasound examination was performed on 40 orthotopic xenograft RCC mouse models. According to tumor maximum diameter ( d ), tumor growth progress was divided into 3 steps: d ≤ 5 mm, 5 mm < d ≤ 10 mm, and d > 10 mm. Color Doppler flow imaging (CDFI), superb microvascular imaging (SMI), and contrast-enhanced ultrasound were administered to monitor tumor perfusion characteristics. The abundance of tumor vascularity on CDFI and SMI was divided into grades 0 to III in ascending order, and their distribution range was categorized into types I to IV. As a result, heterogeneous echogenicity and irregular shape were more common in tumors d > 10 mm than those d < 10 mm ( P < 0.001 for both). Tumor perfusion grade and type on both CDFI and SMI made statistic difference among different growth steps, with higher ratio of hypervascular characteristic in bigger ones (all P < 0.05). Tumor in the same growth step had a higher perfusion grade on SMI than that on CDFI ( P < 0.001). On contrast-enhanced ultrasound, heterogeneous enhancement was more common in those >10 mm ( P < 0.001). It can be concluded that the blood perfusion characteristics of RCC keep on changing during its growth process. In addition, SMI is more sensitive in evaluating tumor perfusion than CDFI.
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Affiliation(s)
| | - Qing Lu
- Department of Ultrasound, Zhongshan Hospital
| | - Cong Li
- Department of Ultrasound, Zhongshan Hospital
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22
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Muacevic A, Adler JR, Mohd OB, Elayan R, Albakri K, Huneiti N, Daraghmeh F, Al-khatatbeh E, Al-thnaibat M. Etiologies, Gross Appearance, Histopathological Patterns, Prognosis, and Best Treatments for Subtypes of Renal Carcinoma: An Educational Review. Cureus 2022; 14:e32338. [PMID: 36627997 PMCID: PMC9825816 DOI: 10.7759/cureus.32338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2022] [Indexed: 12/13/2022] Open
Abstract
Of all primary renal neoplasms, 80-85% are renal cell carcinomas (RCCs), which develop in the renal cortex. There are more than 10 histological and molecular subtypes of the disease, the most frequent of which is clear cell RCC, which also causes most cancer-related deaths. Other renal neoplasms, including urothelial carcinoma, Wilms' tumor, and renal sarcoma, each affect a particular age group and have specific gross and histological features. Due to the genetic susceptibility of each of these malignancies, early mutation discovery is necessary for the early detection of a tumor. Furthermore, it is crucial to avoid environmental factors leading to each type. This study provides relatively detailed and essential information regarding each subtype of renal carcinoma.
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23
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Qu JY, Jiang H, Wang XF, Song XH, Hao CJ. Use of specific contrast-enhanced CT regions of interest to differentiate renal oncocytomas from small clear cell and chromophobe renal cell carcinomas. Diagn Interv Radiol 2022; 28:555-562. [PMID: 36550755 PMCID: PMC9885643 DOI: 10.5152/dir.2022.2111504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE We aimed to examine the usefulness of utilizing a specific contrast-enhanced computed tomog raphy (CT) region of interest (ROI) to differentiate renal oncocytoma (RO) from small clear cell renal cell carcinoma (ccRCC) and chromophobe renal cell carcinoma (chRCC). METHODS A retrospective analysis of pre-contrast phase (PCP), corticomedullary phase (CMP), and nephro graphic phase (NP) contrast-enhanced CT images of the histopathologically confirmed initial cohort (27 ROs, 74 ccRCCs, and 36 chRCCs) was conducted. Small, medium, large, and whole ROIs (S-ROI, M-ROI, L-ROI, and W-ROI, respectively) were utilized for CT attenuation value of tumor (AVT), lesion-to-cortex attenuation (L/C), and heterogeneous degree of tumor (HDT) calcula tions. Differences in these parameters were then compared between RO and ccRCC/chRCC, with receiver operating characteristic (ROC) curves being utilized to gauge the diagnostic utility of the statistically significant parameters. Logistic regression analyses were employed to identify key factors capable of differentiating RO and ccRCC/chRCC, with predictive models further being established. A validation cohort (6 ROs, 30 ccRCCs, and 12 chRCCs) was then employed to vali date the performance of the predictive models. RESULTS Of the parameters evaluated using different ROIs, L/C-CMP (S-ROI) (0.88 ± 0.15 vs. 1.13 ± 0.25, P < .001) and HDT-CMP (W-ROI) (23.02 (12.00-51.21) vs. 37.81 (16.09-89.45), P < .001) were best suited to differentiating RO and ccRCC, yielding respective area under the curve (AUC) values of 0.803 and 0.834. AVT-NP (S-ROI) (122.85 ± 18.87 vs. 86.50 ± 18.65, P < .001) and AVT-NP (M-ROI) (119 (86-167) vs. 81.5 (53-142), P < .001) were better able to differentiate RO and chRCC, yielding respective AUC values of 0.918 and 0.906. Logistic regression analyses revealed that L/C-CMP (S-ROI) and HDT-PCP, as well as AVT-NP (S-ROI) and HDT-CMP, were the primary factors capable of differentiating RO from ccRCC and chRCC, respectively. The predictive model developed to dif ferentiate between RO and ccRCC exhibited a sensitivity of 66.67% and 55.14% in the initial and validation cohorts, respectively, with corresponding specificity of 94.59% and 93.55%, accuracy of 87.13% and 86.84%, and AUC of 0.908 and 0.876. The predictive model developed to differ entiate between RO and chRCC exhibited a sensitivity of 85.19% and 100.00% in the initial and validation cohorts, respectively, with corresponding specificity of 94.59% and 92.86%, accuracy of 87.30% and 95.24%, and AUC of 0.944 and 0.959. CONCLUSION These data demonstrate that a combination of quantitative parameters measured with particu lar ROIs can enable the efficient and reliable differentiation of RO from ccRCC and chRCC for use in routine patient differential diagnosis.
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Affiliation(s)
- Jian-Yi Qu
- Department of Radiology, Yantai Yuhuangding Hospital, Qingdao University School of Medicine, Yantai, China
| | - Hong Jiang
- Department of Radiology, Yantai Yuhuangding Hospital, Qingdao University School of Medicine, Yantai, China
| | - Xiao-Fei Wang
- Department of Urology, Yantaishan Hospital, Binzhou Medical University, Yantai, China
| | - Xin-Hong Song
- Department of Radiology, Yantai Yuhuangding Hospital, Qingdao University School of Medicine, Yantai, China
| | - Cui-Juan Hao
- Department of Radiology, Yantai Yuhuangding Hospital, Qingdao University School of Medicine, Yantai, China
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Bin Satter K, Ramsey Z, Tran PMH, Hopkins D, Bearden G, Richardson KP, Terris MK, Savage NM, Kavuri SK, Purohit S. Development of a Single Molecule Counting Assay to Differentiate Chromophobe Renal Cancer and Oncocytoma in Clinics. Cancers (Basel) 2022; 14:3242. [PMID: 35805014 PMCID: PMC9265083 DOI: 10.3390/cancers14133242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 02/01/2023] Open
Abstract
Malignant chromophobe renal cancer (chRCC) and benign oncocytoma (RO) are two renal tumor types difficult to differentiate using histology and immunohistochemistry-based methods because of their similarity in appearance. We previously developed a transcriptomics-based classification pipeline with "Chromophobe-Oncocytoma Gene Signature" (COGS) on a single-molecule counting platform. Renal cancer patients (n = 32, chRCC = 17, RO = 15) were recruited from Augusta University Medical Center (AUMC). Formalin-fixed paraffin-embedded (FFPE) blocks from their excised tumors were collected. We created a custom single-molecule counting code set for COGS to assay RNA from FFPE blocks. Utilizing hematoxylin-eosin stain, pathologists were able to correctly classify these tumor types (91.8%). Our unsupervised learning with UMAP (Uniform manifold approximation and projection, accuracy = 0.97) and hierarchical clustering (accuracy = 1.0) identified two clusters congruent with their histology. We next developed and compared four supervised models (random forest, support vector machine, generalized linear model with L2 regularization, and supervised UMAP). Supervised UMAP has shown to classify all the cases correctly (sensitivity = 1, specificity = 1, accuracy = 1) followed by random forest models (sensitivity = 0.84, specificity = 1, accuracy = 1). This pipeline can be used as a clinical tool by pathologists to differentiate chRCC from RO.
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Affiliation(s)
- Khaled Bin Satter
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120, 15th St., Augusta, GA 30912, USA; (K.B.S.); (P.M.H.T.); (D.H.); (G.B.); (K.P.R.)
| | - Zach Ramsey
- Department of Pathology, Medical College of Georgia, Augusta University, 1120 15th St., Augusta, GA 30912, USA; (Z.R.); (N.M.S.); (S.K.K.)
| | - Paul M. H. Tran
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120, 15th St., Augusta, GA 30912, USA; (K.B.S.); (P.M.H.T.); (D.H.); (G.B.); (K.P.R.)
| | - Diane Hopkins
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120, 15th St., Augusta, GA 30912, USA; (K.B.S.); (P.M.H.T.); (D.H.); (G.B.); (K.P.R.)
| | - Gregory Bearden
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120, 15th St., Augusta, GA 30912, USA; (K.B.S.); (P.M.H.T.); (D.H.); (G.B.); (K.P.R.)
| | - Katherine P. Richardson
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120, 15th St., Augusta, GA 30912, USA; (K.B.S.); (P.M.H.T.); (D.H.); (G.B.); (K.P.R.)
| | - Martha K. Terris
- Department of Urology, Medical College of Georgia, Augusta University, 1120 15th St., Augusta, GA 30912, USA;
| | - Natasha M. Savage
- Department of Pathology, Medical College of Georgia, Augusta University, 1120 15th St., Augusta, GA 30912, USA; (Z.R.); (N.M.S.); (S.K.K.)
| | - Sravan K. Kavuri
- Department of Pathology, Medical College of Georgia, Augusta University, 1120 15th St., Augusta, GA 30912, USA; (Z.R.); (N.M.S.); (S.K.K.)
| | - Sharad Purohit
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120, 15th St., Augusta, GA 30912, USA; (K.B.S.); (P.M.H.T.); (D.H.); (G.B.); (K.P.R.)
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th St., Augusta, GA 30912, USA
- Department of Undergraduate Health Professionals, College of Allied Health Sciences, Augusta University, 1120 15th St., Augusta, GA 30912, USA
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Kang H, Xu W, Chang S, Yuan J, Bai X, Zhang J, Guo H, Ye H, Wang H. Mucinous tubular and spindle cell carcinomas of the kidney (MTSCC-Ks): CT and MR imaging characteristics. Jpn J Radiol 2022; 40:1175-1185. [PMID: 35644814 DOI: 10.1007/s11604-022-01294-x] [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: 10/21/2021] [Accepted: 05/07/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE To strengthen the recognition of mucinous tubular and spindle cell carcinomas of the kidney (MTSCC-Ks) by analyzing CT and MR imaging findings of MTSCC-Ks. MATERIALS AND METHODS This study retrospectively enrolled ten patients with pathologically confirmed MTSCC-Ks from 2007 to 2020. The main observed imaging characteristics included growth pattern, signal characteristics on T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI), hemorrhage, necrosis, cystic degeneration, lipid component, pseudocapsule and the enhancement pattern. Apparent diffusion coefficient (ADC) value of MTSCC-Ks and normal renal cortex were measured, respectively. All imaging features were evaluated in consensus by two genitourinary radiologists. RESULTS All patients (53.1 ± 6.5 years, male to female, 3:7) presented with a solitary renal tumor with the mean diameter of 3.5 ± 0.4 cm. All lesions showed iso- or slight hypoattenuation on non-contrast CT with no hemorrhage but cystic degeneration (10%) and necrosis (10%). On T2WI, all lesions showed predominantly slight hypointensity with focal hyperintensity. The ADC value of MTSCC-Ks was 0.845 ± 0.017 × 10-3 mm2/s, and ADCtumor-to-ADCrenal cortex value was 0.376 ± 0.084. Pseudocapsules existed in all MTSCC-Ks on MRI. There were seven lesions showed heterogeneous enhancement, while three lesions showed homogeneous enhancement. Among them, six MTSCC-Ks showed slight multiple patchy enhancement (60%) in the corticomedullary phase, while the remaining MTSCC-Ks showed homogeneously slight enhancement (30%) or slightly stratified enhancement (10%). All MTSCC-Ks exhibited slow and progressive enhancement in the late phases. CONCLUSION Iso- or slight hypoattenuation on CT, slight hypointensity with focal hyperintensity on T2WI, marked diffusion restriction on DWI and ADC map, slight multiple patchy enhancement in the corticomedullary phase, and slow and progressive enhancement in the late phases are the imaging features of MTSCC-Ks, which may facilitate the diagnosis of MTSCC-Ks.
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Affiliation(s)
- Huanhuan Kang
- Medical School of Chinese PLA, Beijing, 100853, China.,Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Wei Xu
- Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Shuxiang Chang
- Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Jing Yuan
- Department of Pathology, The First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China
| | - Xu Bai
- Department of Radiology, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Jing Zhang
- Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Huiping Guo
- Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Huiyi Ye
- Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Haiyi Wang
- Department of Radiology, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
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Zhang Z, Wang Z. Computed Tomography Image Features under Denoising Algorithm for Benign and Malignant Diagnosis of Renal Parenchymal Tumor. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:5871385. [PMID: 35685673 PMCID: PMC9166996 DOI: 10.1155/2022/5871385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022]
Abstract
To improve the quality of computed tomography (CT) images and provide help for benign and malignant diagnosis of renal parenchymal tumors, the independent component analysis (ICA) denoising algorithm was used. An improved ICA X-ray CT (X-CT) medical image denoising algorithm was proposed. ICA provided a higher signal-to-noise ratio for CT image denoising. Forty patients with renal tumor were selected as the observation group. The CT image performance of patients was evaluated by the denoising algorithm and compared with the wavelet transform algorithm, and the peak signal-to-noise ratio of the proposed algorithm was analyzed and compared. The results showed that among the 40 patients with renal tumors, 12 were renal clear cell carcinoma cases and 28 were cystic renal carcinoma cases. The accuracy of the enhanced CT image was 93.8%, and that of the CT image using the denoising algorithm was 96.3%; the difference between the two was significant (P < 0.05). The peak signal-to-noise ratio (PSNR) of the algorithm proposed was higher than the PSNR values of CT and noisy images. The PSNR of the proposed algorithm was significantly higher than that of mean filtering. The root mean square error (RMSE) algorithm of the proposed algorithm was significantly lower than that of the mean algorithm in image data processing (P < 0.05), which showed the superiority of the proposed algorithm. Enhanced CT can be staged significantly. In conclusion, the algorithm had a significant effect on the edge contour of detailed features, and the accuracy of CT images based on intelligent calculation was significantly higher than that of conventional CT images for benign and malignant renal parenchyma tumors, which was worth promoting in clinical diagnosis.
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Affiliation(s)
- Zhongxiao Zhang
- Department of Urology, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, Shandong, China
| | - Zehua Wang
- Department of Urology, Qilu Hospital, Shandong University, Jinan 250012, Shandong, China
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27
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Imaging of the Kidney and Urinary Tract: Current and Future Trends. Medicina (B Aires) 2022; 58:medicina58050673. [PMID: 35630091 PMCID: PMC9148005 DOI: 10.3390/medicina58050673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 12/02/2022] Open
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28
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Xu X, Zhong J, Zhou X, Wei Z, Xia Q, Huang P, Shi C, Da J, Tang C, Cheng W, Ge J. Mucinous Tubular and Spindle Cell Carcinoma of the Kidney: A Study of Clinical, Imaging Features and Treatment Outcomes. Front Oncol 2022; 12:865263. [PMID: 35480124 PMCID: PMC9035933 DOI: 10.3389/fonc.2022.865263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 03/18/2022] [Indexed: 11/29/2022] Open
Abstract
Purpose To describe the clinical, imaging, pathological features and oncologic outcomes of mucinous tubular and spindle cell carcinoma (MTSCC) of the kidney. Patients and Methods Twenty-two cases of MTSCC were pathologically identified between January 2004 and April 2021 at our institution. The clinical and imaging findings, pathological features, treatment methods and outcomes of the patients were reviewed. Results These cases included 17 women and 5 men, with a median age at diagnosis of 52.5 years. On contrast-enhanced CT, MTSCC was less enhanced than the adjacent renal parenchyma. Tumor attenuation values were 33.3 ± 6.8HU, 44.0 ± 9.1HU, 54.4 ± 13.9HU and 67.1 ± 11.8HU in the non-contrast, corticomedullary, nephrographic and excretory phases of CT, respectively. Contrast-enhanced ultrasonography and MRI also showed hypovascular features of the masses. On MRI, the tumors were isointense on T1-weighted images and slightly hypo- or hyperintense on T2-weighted images. Diffusion-weighted imaging revealed a low apparent diffusion coefficient of the tumor. The patients were managed with laparoscopic partial nephrectomy (n=5), radical nephrectomy (n=16), or robotic-assisted laparoscopic partial nephrectomy (n=1). The median follow-up time was 59.5 months. All the patients were free of local recurrence or distant metastasis. Conclusions MTSCC is generally indolent and has favorable outcomes. The imaging features of MTSCC are generally hypovascular, which is significantly different from clear cell renal cell carcinoma. However, it is still difficult to distinguish MTSCC from other hypovascular renal tumors preoperatively because their imaging features overlap. Further studies are essential to fully characterize the features of this rare RCC variant.
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Affiliation(s)
- Xiaofeng Xu
- Department of Urology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Jing Zhong
- Department of Radiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Xiumin Zhou
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhifeng Wei
- Department of Urology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qiuyuan Xia
- Department of Pathology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Pengfei Huang
- Department of Ultrasound Diagnosis, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Changjie Shi
- Department of Urology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Jianping Da
- Department of Urology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Chaopeng Tang
- Department of Urology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Wen Cheng
- Department of Urology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Jingping Ge
- Department of Urology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
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29
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Trevisani F, Floris M, Minnei R, Cinque A. Renal Oncocytoma: The Diagnostic Challenge to Unmask the Double of Renal Cancer. Int J Mol Sci 2022; 23:2603. [PMID: 35269747 PMCID: PMC8910282 DOI: 10.3390/ijms23052603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
Renal oncocytoma represents the most common type of benign neoplasm that is an increasing concern for urologists, oncologists, and nephrologists due to its difficult differential diagnosis and frequent overtreatment. It displays a variable neoplastic parenchymal and stromal architecture, and the defining cellular element is a large polygonal, granular, eosinophilic, mitochondria-rich cell known as an oncocyte. The real challenge in the oncocytoma treatment algorithm is related to the misdiagnosis due to its resemblance, at an initial radiological assessment, to malignant renal cancers with a completely different prognosis and medical treatment. Unfortunately, percutaneous renal biopsy is not frequently performed due to the possible side effects related to the procedure. Therefore, the majority of oncocytoma are diagnosed after the surgical operation via partial or radical nephrectomy. For this reason, new reliable strategies to solve this issue are needed. In our review, we will discuss the clinical implications of renal oncocytoma in daily clinical practice with a particular focus on the medical diagnosis and treatment and on the potential of novel promising molecular biomarkers such as circulating microRNAs to distinguish between a benign and a malignant lesion.
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Affiliation(s)
- Francesco Trevisani
- Urological Research Institute, San Raffaele Scientific Institute, 20132 Milan, Italy;
- Unit of Urology, San Raffaele Scientific Institute, 20132 Milan, Italy
- Biorek S.r.l., San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Matteo Floris
- Nephrology, Dialysis and Transplantation, G. Brotzu Hospital, Università degli Studi di Cagliari, 09134 Cagliari, Italy; (M.F.); (R.M.)
| | - Roberto Minnei
- Nephrology, Dialysis and Transplantation, G. Brotzu Hospital, Università degli Studi di Cagliari, 09134 Cagliari, Italy; (M.F.); (R.M.)
| | - Alessandra Cinque
- Biorek S.r.l., San Raffaele Scientific Institute, 20132 Milan, Italy
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30
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Mihalopoulos M, Yaghoubian A, Razdan S, Khusid JA, Mehrazin R, Badani KK, Sfakianos JP, Atallah WM, Tewari AK, Wiklund P, Gupta M, Kyprianou N. Understanding the link between kidney stones and cancers of the upper urinary tract and bladder. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2022; 10:277-298. [PMID: 36313208 PMCID: PMC9605942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/09/2022] [Indexed: 04/22/2023]
Abstract
Kidney stones are one of the most common renal pathologies. While emerging evidence has implicated a potential association between kidney stones and upper urinary tract cancers (including renal cancer), there is limited understanding as to the common underlying biological pathways functionally linking the etiology of kidney stone formation and the incidence, development, and progression of urinary tract cancers. From a clinical perspective, kidney stone disease can be a barrier to oncologic care due to renal obstruction. From the epidemiological perspective, risk factors associated with both conditions include smoking, alcohol consumption, diet, and gender. Herein, we review the association between renal calculi and malignancy of the upper urinary tract and discuss the current understanding of (a) potential shared mechanisms, and (b) the impact this has on shared therapeutic management of both conditions.
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Affiliation(s)
- Meredith Mihalopoulos
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Alan Yaghoubian
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Shirin Razdan
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Johnathan A Khusid
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Reza Mehrazin
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Ketan K Badani
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - John P Sfakianos
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - William M Atallah
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Ashutosh K Tewari
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Peter Wiklund
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Mantu Gupta
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
| | - Natasha Kyprianou
- Department of Urology, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Department of Oncological Sciences, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
- Department of Pathology and Cell-Based Medicine, Icahn School of Medicine at Mount SinaiNew York, NY 10029, USA
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Tsili AC, Moulopoulos LA, Varakarakis IΜ, Argyropoulou MI. Cross-sectional imaging assessment of renal masses with emphasis on MRI. Acta Radiol 2021; 63:1570-1587. [PMID: 34709096 DOI: 10.1177/02841851211052999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Magnetic resonance imaging (MRI) is a useful complementary imaging tool for the diagnosis and characterization of renal masses, as it provides both morphologic and functional information. A core MRI protocol for renal imaging should include a T1-weighted sequence with in- and opposed-phase images (or, alternatively with DIXON technique), T2-weighted and diffusion-weighted images as well as a dynamic contrast-enhanced sequence with subtraction images, followed by a delayed post-contrast T1-weighted sequence. The main advantages of MRI over computed tomography include increased sensitivity for contrast enhancement, less sensitivity for detection of calcifications, absence of pseudoenhancement, and lack of radiation exposure. MRI may be applied for renal cystic lesion characterization, differentiation of renal cell carcinoma (RCC) from benign solid renal tumors, RCC histologic grading, staging, post-treatment follow-up, and active surveillance of patients with treated or untreated RCC.
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Affiliation(s)
- Athina C Tsili
- Department of Clinical Radiology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Lia-Angela Moulopoulos
- 1st Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Areteion Hospital, Athens, Greece
| | - Ioannis Μ Varakarakis
- 2nd Department of Urology, National and Kapodistrian University of Athens, Sismanoglio Hospital, Athens, Greece
| | - Maria I Argyropoulou
- Department of Clinical Radiology, School of Medicine, University of Ioannina, Ioannina, Greece
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Spoendlin M, Bonkat AG. Incidental Small Renal Tumor: More Biopsy, Less Surgery? PRAXIS 2021; 110:1-3. [PMID: 34344194 DOI: 10.1024/1661-8157/a003719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
| | - And Gernot Bonkat
- Merian Iselin Klinik, Basel, Switzerland
- alta uro AG, Basel, Switzerland
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33
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Spoendlin M, Bonkat G. [Incidental Small Renal Tumor: More Biopsy, Less Surgery?]. PRAXIS 2021; 110:539-541. [PMID: 34344192 DOI: 10.1024/1661-8157/a003717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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