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Renal cell carcinoma pathology

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https://www.readbyqxmd.com/read/28327121/bap1-and-pbrm1-in-metastatic-clear-cell-renal-cell-carcinoma-tumor-heterogeneity-and-concordance-with-paired-primary-tumor
#1
Jeanette E Eckel-Passow, Daniel J Serie, John C Cheville, Thai H Ho, Payal Kapur, James Brugarolas, R Houston Thompson, Bradley C Leibovich, Eugene D Kwon, Richard W Joseph, Alexander S Parker
BACKGROUND: BAP1 and PBRM1 are frequently mutated in primary clear cell renal cell carcinoma (ccRCC) tumors; however, the frequency and clinical relevance of these mutations in metastatic ccRCC tumors is unknown. Additionally, while intra-tumor heterogeneity has been shown to be common in primary ccRCC, little is known regarding heterogeneity in metastatic ccRCC tumors. MATERIALS AND METHODS: We analyzed BAP1 and PBRM1 loss of protein expression in patient-matched primary and metastatic tumors from 97 patients...
March 21, 2017: BMC Urology
https://www.readbyqxmd.com/read/28322515/high-dose-radiation-with-chemotherapy-followed-by-salvage-esophagectomy-among-patients-with-locally-advanced-esophageal-squamous-cell-carcinoma
#2
Chawalit Lertbutsayanukul, Chadin Tharavej, Naruemon Klaikeaw, Anussara Prayongrat, Chutinan Lowanitchai, Virote Sriuranpong
BACKGROUND: Locoregional failure is a major problem associated with chemoradiation treatment for squamous cell esophageal carcinoma. The aim of this study was to assess the feasibility, efficacy, and toxicity of preoperative radiation (dose > 50 Gy) with platinum-based chemotherapy followed by esophagectomy in locally advanced squamous cell carcinoma. METHODS: Data of patients with cT2-cT4 or node positive squamous cell carcinoma of the esophagus who received trimodality treatment between February 2006 and June 2015 were reviewed...
March 21, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28321395/detection-of-intratumor-heterogeneity-in-modern-pathology-a-multisite-tumor-sampling-perspective
#3
Jesús M Cortés, Giovanni de Petris, José I López
Current sampling protocols of neoplasms along the digestive tract and in the urinary bladder have to be updated, as they do not respond to the necessities of modern personalized medicine. We show here that an adapted version of multisite tumor sampling (MSTS) is a sustainable model to overcome current deficiencies in digestive and bladder tumors when they are large enough so as to make unaffordable a total sampling. The new method is based on the divide-and-conquer algorithm and includes a slight modification of the MSTS, which proved to be useful very recently in clear cell renal cell carcinoma...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28315906/nineteen-cases-with-synchronous-multiple-primary-cancers-studied-by-18-f-fdg-pet-ct
#4
Lifang Pang, Guobing Liu, Hongcheng Shi, Pengcheng Hu, Beilei Li, Dengfeng Cheng
OBJECTIVE: To evaluate the value of fluorine -18-fuoro-2-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) in evaluating synchronous multiple primary cancers (SMPC). METHODS: Nineteen patients with pathologically-confirmed SMPC were collected. Clinical and (18)F-FDG PET/CT characteristics of these patients were reviewed and analyzed. Maximum standardized uptake value, (SUVmax) of all lesions was measured and difference (Δ)SUVmax between the SUV of two primary tumors in each patient was calculated as: [(the larger SUVmax - the smaller SUVmax)/ the larger SUVmax]×100%...
March 20, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28304214/retroperitoneal-laparoscopic-partial-nephrectomy-for-tumors-larger-than-7%C3%A2-cm-in-renal-cell-carcinoma-initial-experience-of-single-institution
#5
Erlin Song, Xin Ma, Ruihua An, Peng Zhang, Xu Zhang, Baojun Wang, Taoping Shi, Shengkun Sun
BACKGROUND: To report our initial experience dealing with retroperitoneal laparoscopic partial nephrectomy (LPN) for tumors larger than 7 cm in renal cell carcinoma (RCC). MATERIALS AND METHODS: A total of 15 patients with malignant tumors larger than 7 cm underwent retroperitoneal LPN at our institution. Patient baseline demographics, perioperative outcomes, pathological characteristics, and estimated glomerular filtration rate (eGFR) were analyzed retrospectively in our collected database...
March 17, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28300276/reassessing-the-clinical-spectrum-associated-with-hereditary-leiomyomatosis-and-renal-cell-carcinoma-syndrome-in-french-fh-mutation-carriers
#6
Marie Muller, Sophie Ferlicot, Marine Guillaud-Bataille, Gwénaël Le Teuff, Catherine Genestie, Sophie Deveaux, Abdelhamid Slama, Nicolas Poulalhon, Bernard Escudier, Laurence Albiges, Nadem Soufir, Marie-Françoise Avril, Betty Gardie, Carolina Saldana, Yves Allory, Anne-Paule Gimenez-Roqueplo, Brigitte Bressac-de Paillerets, Stéphane Richard, Patrick R Benusiglio
We addressed uncertainties regarding Hereditary Leiomyomatosis and Renal Cell Carcinoma (HLRCC) by exploring all French cases, representing the largest series to date. Fumarate Hydratase (FH) germline testing was performed with Sanger sequencing and qPCR/MLPA. Enzyme activity was measured when necessary. We carried out whenever possible a pathology review of RCC and S-(2-succino)-cysteine (2SC)/fumarate hydratase immunohistochemistry. We estimated survival using non-parametric Kaplan-Meier. There were 182 cases from 114 families...
March 16, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28296764/case-report-of-primary-renal-pelvis-squamous-cell-carcinoma-coexisting-with-long-standing-calculi-in-left-kidney-on-18f-fdg-pet-ct
#7
Shengming Deng, Bin Zhang, Ying Huang, Jihui Li, Shibiao Sang, Wei Zhang
RATIONALE: Primary renal pelvis squamous cell carcinoma (SCC) is an extremely rare neoplasm. In many patients, the SCC was associated with renal calculi. PATIENT CONCERNS: A 61-year-old male presented with intermittent pain at the left lumbar region for 3 days. The PET/CT images demonstrated increased F-FDG uptake in the upper pole of the left kidney and left renal hilar lymph nodes. DIAGNOSES: Pathologic examination revealed well-moderately differentiated renal pelvis SCC with lymphatic metastasis...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28296683/preoperative-computed-tomography-assessment-for-perinephric-fat-invasion-comparison-with-pathological-staging
#8
Jaime Landman, Jae Young Park, Chenhui Zhao, Molly Baker, Martin Hofmann, Mohammad Helmy, Chandana Lall, Mari Bozoghlanian, Zhamshid Okhunov
OBJECTIVE: The aim of this study was to assess the accuracy of computed tomography (CT) imaging in diagnosing perinephric fat (PNF) invasion in patients with renal cell carcinoma. METHODS: We retrospectively reviewed the medical records and preoperative CT images of 161 patients (105 men and 56 women) for pT1-pT3a renal cell carcinoma. We analyzed the predictive accuracy of CT criteria for PNF invasion stratified by tumor size. We determined the predictive value of CT findings in diagnosing PNF invasion using logistic regression analysis...
March 15, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28288191/influence-of-tumor-size-on-oncological-outcomes-of-pathological-t3an0m0-renal-cell-carcinoma-treated-by-radical-nephrectomy
#9
Luyao Chen, Xin Ma, Hongzhao Li, Liangyou Gu, Xintao Li, Yu Gao, Yongpeng Xie, Xu Zhang
OBJECTIVE: To evaluate the prognostic significance of tumor size in pathological T3aN0M0 renal cell carcinoma (RCC) treated by radical nephrectomy. MATERIALS AND METHODS: Patients who underwent radical nephrectomy for sporadic RCC with pathological T3aN0M0 RCC at our institution between January 2006 and June 2015 were identified. The entire cohort was divided into two groups according to the cutoff of tumor size obtained from receiver operating characteristic (ROC) curve...
2017: PloS One
https://www.readbyqxmd.com/read/28287186/prognostic-and-clinicopathological-role-of-high-ki-67-expression-in-patients-with-renal-cell-carcinoma-a-systematic-review-and-meta-analysis
#10
Yongpeng Xie, Luyao Chen, Xin Ma, Hongzhao Li, Liangyou Gu, Yu Gao, Yang Fan, Yu Zhang, Xu Zhang
Previous studies have elevated the prognostic value of Ki-67 in renal cell carcinoma (RCC), but the reports are controversial and inconsistent. We conducted a systematic review and meta-analysis to clarify the significance of Ki-67 in RCC prognosis. We systematically searched PubMed, Web of Science, and Embase to identify relevant studies until April 2016. Based on the inclusion and exclusion criteria, 20 studies, including 5,398 patients, were eligible for further analysis. Results showed that high Ki-67 expression in RCC was associated with poor OS (HR = 1...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28285963/clear-cell-colorectal-carcinoma-time-to-clarify-diagnosis
#11
Andrea Remo, Federica Grillo, Luca Mastracci, Matteo Fassan, Sokol Sina, Caterina Zanella, Pietro Parcesepe, Emanuele Damiano Urso, Massimo Pancione, Germana Bortuzzo, Aldo Scarpa, Erminia Manfrin
Primary clear cell colorectal carcinoma (CCC) is a very rare entity accounting for only 35 cases reported in the Literature. CCC is neither classified as a distinct entity nor is it defined as a CRC variant because its ontogeny remains unclear. Most of the reported CCC were found in the distal colon in patients with a mean age of 56 years. Histologically, clear cell change is the main morphologic feature and may present in a "pure" form, composed exclusively of clear cells, or in a "composite" form, admixed with other morphologically different components...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28284894/can-partial-nephrectomy-provide-equal-oncological-efficiency-and-safety-compared-with-radical-nephrectomy-in-patients-with-renal-cell-carcinoma-%C3%A2-4cm-a-propensity-score-matched-study
#12
Hakmin Lee, Jong Jin Oh, Seok Soo Byun, Chang Wook Jeong, Cheol Kwak, Byong Chang Jeong, Seong Soo Jeon, Hyun Moo Lee, Han-Yong Choi, Seong Il Seo
OBJECTIVE: Although partial nephrectomy (PN) is the standard treatment for localized clinical T1a renal cell carcinoma (RCC), treatment of larger renal tumors is controversial. We evaluated the oncological outcomes and perioperative complications after radical and PN for RCC ≥4cm. PATIENTS AND METHODS: We retrospectively analyzed the data of 2,373 patients surgically treated for nonmetastatic RCC with clinical T1b or T2 (≥4cm). The propensity scores for surgery type were calculated, and the partial group was matched to the radical group in a 1:3 ratio...
March 8, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28284892/body-mass-index-and-the-clinicopathological-characteristics-of-clinically-localized-renal-masses-an-international-retrospective-review
#13
Efrat Tsivian, Matvey Tsivian, Kae Jack Tay, Thomas Longo, Ziv Zukerman, Giuseppe Martorana, Riccardo Schiavina, Eugenio Brunocilla, Thomas J Polascik
OBJECTIVES: To investigate the potential association between body mass index (BMI) and clinicopathological features of clinically localized renal masses. MATERIALS AND METHODS: An international, multi-institutional retrospective review of patients who underwent surgery for clinically localized renal masses between 2000 and 2010 was undertaken after an institutional review board approval. Patients were divided into 4 absolute BMI groups based on the entire cohort׳s percentiles and 4 relative BMI groups based on their respective population (American or Italian)...
March 8, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28274620/partial-nephrectomy-is-associated-with-higher-risk-of-relapse-compared-with-radical-nephrectomy-for-clinical-stage-t1-renal-cell-carcinoma-pathologically-upstaged-to-t3a
#14
Paras H Shah, Daniel M Moreira, Vinay R Patel, Geoffrey Gaunay, Arvin K George, Manaf Alom, Zachary Kozel, Oksana Yaskiv, Simon J Hall, Michael J Schwartz, Manish A Vira, Lee Richstone, Louis R Kavoussi
PURPOSE: We aimed to study recurrence-free survival after partial versus radical nephrectomy for clinical stage T1 renal cell carcinoma among all comers and those upstaged to pathologic stage T3a. MATERIALS AND METHODS: A retrospective review of 1250 patients undergoing partial nephrectomy or radical nephrectomy for clinically localized T1 renal cell carcinoma between 2006 and 2014 was performed. Recurrence-free survival was estimated using the Kaplan-Meier method and evaluated as a function of nephrectomy type with log-rank test and Cox models adjusting for clinical, radiological, and pathological characteristics...
March 5, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28274318/-knockdown-of-atg5-enhances-the-sensitivity-of-human-renal-carcinoma-cells-to-sunitinib
#15
Peng Li, Qi Han, Ming Tang, Keqin Zhang
Objective To investigate the expression levels of autophagy-related gene 5 (ATG5) and microtubule-associated protein 1 light chain 3 (LC3) and their effects on sunitinib resistance in human renal carcinoma cells. Methods After clinic-pathologic feature and survival analysis, 99 renal clear cell carcinoma tissues with different histological grades were used to detect the expression of ATG5 and LC3 by immunohistochemistry. Renal carcinoma cell line A-498 was infected with lentivirus-mediated ATG5 shRNA. Western blot analysis was performed to confirm the efficiency of ATG5 knockdown...
March 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28272006/solitary-metastasis-of-clear-renal-cell-carcinoma-to-thyroid-gland-three-reported-cases-with-review-of-the-literature
#16
Jaromir Astl, Abdulrahman Ali Bahannan, Jaroslava Dušková, Z Novák, P Vlcek, Jan Betka
Metastasis to the head and neck and more specifically to the thyroid gland from distant primary tumors is less common in comparison to the local regional metastasis of squamous cell carcinomas of the upper aero-digestive tract. Preoperative diagnosis of these cases can be difficult. The authors present three cases with distant solitary metastases of clear renal cell carcinoma to the thyroid gland with ambiguous mechanism of tumor spread to the thyroid. Solitary metastases of clear renal cell carcinomas are an uncommon variant of metastasis of this tumor and may imitate thyroid well differentiated carcinoma which most commonly affects the thyroid gland...
January 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28268233/does-computed-tomography-still-have-limitations-to-distinguish-benign-from-malignant-renal-tumors-for-radiologists
#17
Toshitaka Shin, Vinay A Duddalwar, Osamu Ukimura, Toru Matsugasumi, Frank Chen, Nariman Ahmadi, Andre Luis de Castro Abreu, Hiromitsu Mimata, Inderbir S Gill
OBJECTIVES: To evaluate the current accuracy of CT for diagnosing benign renal tumors. MATERIALS AND METHODS: We retrospectively reviewed 905 patients who underwent preoperative CT followed by surgical resection. The final pathology was benign in 156 patients (17%). After exclusions, 140 patients with 163 benign tumors were included and 3 sets of the CT interpretations by radiologists with varying levels of experience were analyzed. RESULTS: The histological breakdown was as follows: oncocytomas (54...
March 8, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28266288/parathyroid-adenomas-in-adults-and-adolescents-critical-appraisal-and-surgical-strategy-in-18-cases
#18
Mihai Radu Diaconescu, Ioan Costea, Mihai Glod, Radu Terinte, Smaranda Diaconescu
Background: Our study underline scarcity of isolated case reports or small case series of parathyroid adenoma (PA) published in autochthonous medical literature,their variable clinical expression among the "historic" varieties but also the diagnostic difficulties and delays of diagnosis as well consecration of surgery as the golden therapeutic standard of this disorder. PATIENTS AND METHOD: Demographic, clinical presentations, laboratory and imaging data, operative findings and procedures together with pathology account and outcome from the case reports of 18 patients with documented PHP were retrospectively analyzed...
January 2017: Chirurgia
https://www.readbyqxmd.com/read/28264538/-a-case-of-hemodialysis-associated-pelvic-amyloidoma-mimicking-renal-cancer-associated-etiology
#19
Hideaki Takada, Kanji Nagahama, Yoshiharu Nakashima, Koji Yoshimura, Yasunori Nishio, Ken Matsuo, Noriko Mori
Patients with renal insufficiency receiving long-term hemodialysis often develop so-called hemodialysis amyloidosis characterized by systemic β 2-microglobulin amyloid lesions, while patients with renal cell carcinoma may develop amyloid A(AA) amyloidosis. Herein, we present a 67-year-old man on thirty-yearlong hemodialysis who was diagnosed to have left renal cell carcinoma coincident with a large spaceoccupying lesion adjacent to the psoas muscle in the pelvic cavity. An ultrasound-guided percutaneous needle biopsy was performed at the time of laparoscopic radical nephrectomy...
February 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28261513/primary-clear-cell-microcystic-adenoma-of-the-sinonasal-cavity-pathological-or-fortuitous-association
#20
Rosalin Cooper, Hannah Markham, Jeffery Theaker, Adrian Bateman, David Bunyan, Matthew Sommerlad, Gillian Crawford, Diana Eccles
Primary clear cell microcystic adenoma of the sinonasal cavity is rare. It has previously been described only as a VHL-associated tumour. Von Hippel-Lindau (VHL) syndrome is an inherited cancer syndrome characterised by an elevated risk of neoplasia including clear cell renal cell carcinoma (ccRCC), haemangioblastoma, and phaeochromocytoma. We describe the second reported case of a primary clear cell microcystic adenoma of the sinonasal cavity. The 39-year-old patient with VHL syndrome had previously undergone resection and ablation of ccRCC...
2017: Case Reports in Pathology
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