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Renal cell carcinoma pathology

Jun Dai, Yuchao Lu, Jinyu Wang, Lili Yang, Yingyan Han, Ying Wang, Dan Yan, Qiurong Ruan, Shaogang Wang
Clear-cell renal-cell carcinoma (ccRCC) is the most common pathological subtype of renal cell carcinoma (RCC), accounting for about 80% of RCC. In order to find potential prognostic biomarkers in ccRCC, we presented a four-gene signature to evaluate the prognosis of ccRCC. SurvExpress and immunohistochemical (IHC) staining of tissue microarrays were used to analyze the association between the four genes and the prognosis of ccRCC. Data from TCGA dataset revealed a prognostic prompt function of the four genes (PTEN, PIK3C2A, ITPA and BCL3)...
October 13, 2016: Oncotarget
Fabio C M Torricelli, Denis Jardim, Giuliano B Guglielmetti, Vipul Patel, Rafael F Coelho
INTRODUCTION AND OBJECTIVE: Retroperitoneal lymph node dissection (RPLND) is indicated for patients with non-seminoma¬tous germ cell tumor (NSGCT) with residual disease after chemotherapy. Although the gold standard approach is still the open surgery, few cases of robot-assisted laparoscopic RPLND have been described. Herein, we aim to present the surgical technique for robot-assisted laparoscopic RPLND. PATIENT AND METHOD: A 30 year-old asymptomatic man presented with left testicular swelling for 2 months...
October 25, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Lu Wang, Ian Hughes, Connor Snarskis, Helyn Alvarez, Jingyang Feng, Gopal N Gupta, Maria M Picken
Approaches to nephron-sparing surgeries (NSS) of renal lesions include partial nephrectomy (PN) and tumor enucleation (TE). Our objective was to examine the pathology of the pseudocapsule and status of the surgical margin in small renal masses treated by NSS and to correlate these findings with the surgical and oncological outcomes. All consecutive renal TE and PN specimens obtained during the period between January 2012 and December 2014, of which clinical follow-up was available, were included in this study...
October 24, 2016: Virchows Archiv: An International Journal of Pathology
S Chow, V Galvis, M Pillai, R Leach, E Keene, A Spencer-Shaw, A Shablak, J Shanks, T Liptrot, F Thistlethwaite, R E Hawkins
BACKGROUND: VEGF-targeted therapy has become the mainstay of treatment for majority of mRCC patients. For most patients, benefit is short-lived and therefore treatment remains palliative in intent. HD IL2 is an effective immunotherapy treatment capable of durable remission in some patients but its unselected use has been difficult due to its modest response rate and considerable adverse effects. Using set pathology criteria as a selection tool in clinical practice, we have been able to show improved outcomes in our previous report...
2016: Journal for Immunotherapy of Cancer
Maryam Abolhasani, Sareh Salarinejad, Mohammad Kazem Moslemi
INTRODUCTION: Ewing sarcoma/Primitive neuroectodermal tumor of the kidney (ES/PNET) is a member of Ewing's sarcoma family, occurring in young adults and has aggressive clinical behavior and poor prognosis. However, its discrimination from the renal cell carcinoma (RCC) is very difficult preoperatively. We present three cases of this rare disease that were managed in two academic centers. PRESENTATION OF CASES: Herein we report three cases of ES/PNET of the kidney, 2 young men complaining of right flank pain and gross hematuria and one young woman complaining of left subcostal pain...
October 18, 2016: International Journal of Surgery Case Reports
Handoo Rhee, John Blazak, Chui Ming Tham, Keng Lim Ng, Benjamin Shepherd, Malcolm Lawson, John Preston, Ian Vela, Paul Thomas, Simon Wood
BACKGROUND: In this study, we prospectively evaluate the diagnostic potential of a gallium-68 (68Ga) prostate-specific membrane antigen (PSMA)-binding ligand and positron emission tomography (PET) in detecting metastatic lesions in patients with renal tumour. The secondary aim was to determine whether the findings would result in the alteration of patient management. RESULTS: Ten patients with renal lesion and potential metastatic disease on conventional imaging were recruited...
December 2016: EJNMMI Research
Rui-Li Zhang, Jun-Ping Yang, Li-Xia Peng, Li-Sheng Zheng, Ping Xie, Meng-Yao Wang, Yun Cao, Zhi-Ling Zhang, Fang-Jian Zhou, Chao-Nan Qian, Yong-Xing Bao
Clear cell renal cell carcinoma (ccRCC) is a common pathological subtype of renal cancer. Although the recent application of molecular-targeted agents has modestly improved the prognosis of ccRCC patients, their outcome is still poor. It is therefore important to characterize the molecular and biological mechanisms responsible for the development of ccRCC. Approximately 25% ccRCC patients involves the loss of RNA-binding protein QKI at 6q26, but the role of QKI in ccRCC is unknown. Here, we found that QKI-5 was frequently downregulated in ccRCC patients and its down-regulation was significantly associated with clinical features including T status, M status, and differentiation grade, and poorer patient prognosis...
October 21, 2016: Cell Cycle
Leandro Z Crivellenti, Gyl E B Silva, Sofia Borin-Crivellenti, Rachel Cianciolo, Christopher A Adin, Márcio Dantas, Denner S Dos Anjos, Mirela Tinucci-Costa, Aureo E Santana
The incidence and prevalence of paraneoplastic glomerulopathy, especially associated with carcinoma, are a matter of debate and the causal link between cancer and glomerular diseases remains unclear. The aim of this study was to evaluate renal biopsies of selected bitches with spontaneous mammary gland carcinoma. We hypothesized that dogs with mammary carcinomas would show histologic evidence of glomerular pathology. A prospective study was performed in dogs with naturally occurring mammary carcinoma that were undergoing tumor resection and ovariohysterectomy...
2016: PloS One
X Chen, F X Dou, X B Cheng, A T Guo, H Y Shi
Objective: To study the clinicopathologic features of thyroid-like follicular renal cell carcinoma. Methods: Clinical data were collected in 5 cases of thyroid-like follicular renal cell carcinoma. HE staining and immunohistochemistry were carried out in surgically-removed specimen to analyze the clinical and pathological features with review of the literatures. Results: The patients aged 20-55 years, with one male and four females; the tumor occurred in the left kidney in three cases and right kidney in two cases...
October 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Hilaire C Lam, Julie S Nijmeh, Elizabeth P Henske
In just the past five years, dramatic changes have occurred in the clinical management of Tuberous Sclerosis Complex (TSC). Detailed knowledge about the role of the TSC proteins in regulating the activity of the mammalian Target of Rapamycin Complex 1 (mTORC1) underlies this paradigm-shifting progress. Advances continue to be made in understanding the genetic pathogenesis of the different tumours that occur in TSC, including pivotal discoveries using next-generation sequencing (NGS). For example, the pathogenesis of angiofibromas is now known to involve UV-induced mutations, and the pathogenesis of multifocal renal cell carcinoma (RCC) in TSC is now known to result from distinct second-hit mutations...
October 18, 2016: Journal of Pathology
D Peng, X S Li, C J Zhang, K W Yang, Q Tang, L Zhang, X T Yu, Z S He, L Q Zhou
OBJECTIVE: To evaluate the impacts of clinical, pathological, and laboratory factors on oncological outcomes of patients with T3N0M0 renal cell carcinoma. METHODS: The clinical data, laboratory exam results, and follow-up outcomes of 182 patients with T3N0M0 renal cell carcinoma who underwent nephrectomy from 2007 to 2012 in Peking University First Hospital were retrospectively collected. The 5-year cancer-specific survival and 5-year recurrence-free survival of all the patients were calculated using Kaplan-Meier method, and the statistical significance between the survival curves were compared using the Log-rank test...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Baijun Dong, Yujing Gao, Xunlei Kang, Hongchang Gao, Jin Zhang, Hua Guo, Mingjian J You, Wei Xue, Jinke Cheng, Yiran Huang
Metabolic shift toward aerobic glycolysis is a fundamental element contributing to the development and progression of clear cell renal cell carcinoma (ccRCC). We and others previously observed enhanced glycolysis and diminished tricarboxylic acid (TCA) cycle activity in ccRCC tissue. Here, by integrated gene expression and metabolomic analyses of 36 matched pairs of tumor and adjacent normal tissues, we showed that expression of Sentrin/SUMO-specific protease 1 (SENP1) is positively associated with glycolysis levels in ccRCC...
October 12, 2016: Oncotarget
Giacomo Maria Pirola, Eugenio Martorana, Francesco Antonio Fidanza, Luca Reggiani Bonetti, Stefano Puliatti, Alessandra Bonora, Salvatore Micali, Giampaolo Bianchi
INTRODUCTION: About 20% of patients with a diagnosis of primary renal cell carcinoma (RCC) present directly with metastatic disease. The aim of the present manuscript is to describe, for the first time a RCC metastasis located to the distal female urethra and to present an update on metastatic locations to the male spermatic cord. MATERIALS AND METHODS: We report two cases of rare RCC metastases. The first concerns a 92-year-old female patient who came to our attention for recurrent urethral bleeding, which was initially believed to be secondary to urethral mucosal ectropion...
October 8, 2016: Urologia
Lu Yu, Jun Li, Sanpeng Xu, Mariajose Navia Miranda, Guoping Wang, Yaqi Duan
BACKGROUND: Xp11.2 translocation/transcription factor E3 (TFE3) rearrangement renal cell carcinoma (RCC) is a rare subtype of RCC with limited clinical and pathological data. CASE PRESENTATION: Here we present an unusual high-grade Xp11.2 translocation RCC with a rhabdoid feature and SMARCB1 (INI1) inactivation in a 40-year-old man with end-stage kidney disease. The histological examination of the dissected left renal tumor showed an organoid architecture of the eosinophilic or clear neoplastic cells with necrosis and high mitotic activity...
October 12, 2016: Diagnostic Pathology
Jae Heon Kim, Hwa Yeon Sun, Jiyoung Hwang, Seong Sook Hong, Yong Jin Cho, Seung Whan Doo, Won Jae Yang, Yun Seob Song
BACKGROUND: The aim of this study was to investigate the diagnostic accuracy of contrast-enhanced computed tomography (CT) and contrast-enhanced magnetic resonance imaging (MRI) of small renal masses in real practice. METHODS: Contrast-enhanced CT and MRI were performed between February 2008 and February 2013 on 68 patients who had suspected small (≤4 cm) renal cell carcinoma (RCC) based on ultrasonographic measurements. CT and MRI radiographs were reviewed, and the findings of small renal masses were re-categorized into five dichotomized scales by the same two radiologists who had interpreted the original images...
October 12, 2016: World Journal of Surgical Oncology
Venkatesh Krishnamoorthy, Kiran Krishne Gowda, Raman Narayana Rao
Renal cell carcinoma with rhabdoid differentiation (RCC-R) has an aggressive biologic behavior and poor prognosis. A recent consensus statement of the International Society of Urological Pathology (ISUP) proposed a nucleolar grading system (ISUP grade) for RCC to replace Fuhrman system and recommended reporting the presence of rhabdoid differentiation and considering tumors with rhabdoid differentiation to be ISUP Grade 4. We report a case of incidentally detected clear cell RCC-R in a 52-year-old man. This is one of the earliest cases of RCC-R (pT1b) detected and first such case from Indian subcontinent...
October 2016: Indian Journal of Pathology & Microbiology
Jason A Jarzembowski
Dr. Louis "Pepper" Dehner is an internationally renowned surgical pathologist, especially in the subspecialty of pediatric pathology. Although his clinical and academic expertise are broad, with over 400 published articles, some of his most intriguing contributions have been in the area of pediatric renal and genitourinary pathology. This review focuses on the entities in these following organ systems where he has focused his efforts: malignant rhabdoid tumor, renal medullary carcinoma, Ewing sarcoma/peripheral neuroectodermal tumor, and the DICER1-related lesions cystic nephroma, embryonal rhabdomyosarcoma of the uterine cervix, and Sertoli-Leydig cell tumor...
August 31, 2016: Seminars in Diagnostic Pathology
Kun Shao, Tianming Shi, Yang Yang, Xianghui Wang, Da Xu, Peijun Zhou
Recently, numerous studies revealed that long non-coding RNAs (lncRNAs) play complex roles in the field of tumor biology, while the functions of lncRNA in renal cell carcinoma (RCC) remain largely unknown. In the current study, we retrieved Oncomine database and found a lncRNA colorectal neoplasia differentially expressed (CRNDE) which is highly expressed in different cohorts of RCC patients; this clue reminds us that CRNDE might exert its functions in RCC tumorigenesis. We then detected the level of CRNDE in fresh RCC tissues and found that CRNDE is significantly up-regulated compared with adjacent tissues...
October 6, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Samy L Habib, Noor Y Al-Obaidi, Maciej Nowacki, Katarzyna Pietkun, Barbara Zegarska, Tomasz Kloskowski, Wojciech Zegarski, Tomasz Drewa, Edward A Medina, Zhenze Zhao, Sitai Liang
Tuberous sclerosis complex (TSC) is an autosomal dominant and multi-system genetic disorder in humans. TSC affects around 25,000 to 40,000 individuals in the United States and about 1 to 2 million individuals worldwide, with an estimated prevalence of one in 6,000 newborns. TSC occurs in all races and ethnic groups, and in both genders. TSC is caused by defects or mutations in two genes, TSC1 and TSC2. Loss of TSC1/TSC2 leads to dysregulation of mTOR, resulting in aberrant cell differentiation and development, and abnormal enlargement of cells...
2016: Journal of Cancer
Franziska Erlmeier, Arndt Hartmann, Michael Autenrieth, Max Wiedemann, Philipp Ivanyi, Sandra Steffens, Wilko Weichert
Immune checkpoint inhibitors targeting the inhibitory cross talk between tumor and immune cells have been approved for therapy in renal cell carcinoma (RCC). In contrast to clear cell RCC, little is known on PD-1/PD-L1 expression patterns in rarer RCC subtypes. The aim of this study was to evaluate the prevalence, distribution and prognostic impact of PD-1 and PD-L1 expression in chromophobe (ch)RCC. Patients who underwent renal surgery due to chRCC were retrospectively evaluated. Tumor specimen was analyzed for PD-1 and PD-L1 expression by immunohistochemistry...
November 2016: Medical Oncology
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