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Renal cell carcinoma pathology

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https://www.readbyqxmd.com/read/28090262/rapidly-growing-right-ventricular-outflow-tract-mass-in-patient-with-sarcomatoid-renal-cell-carcinoma
#1
Jongmin Hwang, Yong Hyun Park, Kyung Un Choi, Jeong Su Kim, Ki Won Hwang, Sang Hyun Lee, Min Ku Chon, Soo Yong Lee, Dae Sung Lee
Cardiac metastasis from renal cell carcinoma (RCC) without inferior vena cava (IVC) involvements is extremely rare with few reported cases. Sarcomatoid RCC with rhabdoid feature is a rare pathologic type of RCC having aggressive behavior due to great metastatic potential. Here, we report a case of rapidly growing cardiac metastasis of RCC which brought on right ventricular outflow tract (RVOT) obstruction without IVC and right atrial involvement in a 61-year-old woman. Cardiac arrest occurred during radical nephrectomy and echocardiography revealed mass nearly obstructing the RVOT which was not recognized by preoperative echocardiography 1 month ago...
December 2016: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28076021/radiologic-assessment-of-native-renal-vasculature-a-multimodality-review
#2
Sayf Al-Katib, Monisha Shetty, Syed Mohammad A Jafri, Syed Zafar H Jafri
A wide range of clinically important anatomic variants and pathologic conditions may affect the renal vasculature, and radiologists have a pivotal role in the diagnosis and management of these processes. Because many of these entities may not be suspected clinically, renal artery and vein assessment is an essential application of all imaging modalities. An understanding of the normal vascular anatomy is essential for recognizing clinically important anatomic variants. An understanding of the protocols used to optimize imaging modalities also is necessary...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28068796/partial-nephrectomy-for-presumed-renal-cell-carcinoma-incidence-predictors-and-perioperative-outcomes-of-benign-lesions
#3
Tyler Marques Bauman, Aaron Potretzke, Alec J Wright, Brent Alexander Knight, Joel M Vetter, Robert S Figenshau
BACKGROUND: The aim of this study was to investigate the incidence of benign histology after partial nephrectomy (PN) in patients with presumed malignancy from preoperative imaging. Further, preoperative predictors of benign lesions and perioperative outcomes were also assessed. METHODS: A series of patients undergoing PN for renal masses was identified using a prospectively maintained database. Patients were excluded for known genetic conditions, if more than one renal mass was resected, or if standard preoperative imaging was not suspicious for RCC...
January 9, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28067459/surgical-and-oncologic-outcomes-of-laparoscopic-radical-nephrectomy-for-non-metastatic-renal-cancer-in-long-term-dialysis-patients
#4
Kenji Omae, Tsunenori Kondo, Toshio Takagi, Junpei Iizuka, Hirohito Kobayashi, Yasunobu Hashimoto, Kazunari Tanabe
This study aimed to compare the outcomes of laparoscopic radical nephrectomy (LRN) between patients undergoing dialysis for ≤240 and >240 months. Data from all dialysis patients with non-metastatic renal cell carcinoma (RCC) treated with LRN between 2008 and 2015 in our hospital were evaluated retrospectively. Patients were divided into two groups, shorter- and longer-term dialysis patients, according to the preoperative duration of dialysis (≤240 vs. >240 months). Of 174 patients, 58 (33.3%) were on longer-term dialysis...
January 9, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28056874/sorafenib-versus-sunitinib-as-first-line-treatment-agents-in-chinese-patients-with-metastatic-renal-cell-carcinoma-the-largest-multicenter-retrospective-analysis-of-survival-and-prognostic-factors
#5
Hai-Liang Zhang, Xi-Nan Sheng, Xue-Song Li, Hong-Kai Wang, Zhi-Hong Chi, Zhi-Song He, Ding-Wei Ye, Jun Guo
BACKGROUND: To compare the efficacy of sorafenib and sunitinib with regard to overall survival (OS) and progression free survival (PFS) in Chinese patients with metastatic renal cell carcinoma (mRCC). METHODS: A multicenter, retrospective study was performed to elucidate the relationship between clinical variables and prognosis comparing sorafenib and sunitinib as first-line treatment agents in Chinese patients with mRCC. Between September 2006 and December 2014, 845 patients received either sorafenib (400 mg bid; n = 483) or sunitinib (50 mg q...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28050373/histopathologic-findings-in-autopsies-with-emphasis-on-interesting-and-incidental-findings-a-pathologist-s-perspective
#6
Sapna Patel, B R Rajalakshmi, G V Manjunath
INTRODUCTION: Autopsy aids to the knowledge of pathology by unveiling the rare lesions which are a source of learning from a pathologist's perspective Some of them are only diagnosed at autopsy as they do not cause any functional derangement. This study emphasizes the various incidental lesions which otherwise would have been unnoticed during a person's life. AIM: The aim of this study was to determine the spectrum of histopathological findings including neoplastic lesions related or unrelated to the cause of death...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28049985/demyelinating-peripheral-neuropathy-due-to-renal-cell-carcinoma
#7
Kenya Nishioka, Motoki Fujimaki, Kazuaki Kanai, Yuta Ishiguro, Tomoko Nakazato, Ryota Tanaka, Kazumasa Yokoyama, Nobutaka Hattori
Renal cell carcinoma (RCC) patients who develop a paraneoplastic syndrome may present with neuromuscular disorders. We herein report the case of a 50-year-old man who suffered from progressive gait disturbance and muscle weakness. The results of a nerve conduction study fulfilled the criteria of chronic inflammatory demyelinating polyneuropathy. An abdominal CT scan detected RCC, the pathological diagnosis of which was clear cell type. After tumor resection and a single course of intravenous immunoglobulin therapy, the patient's symptoms drastically improved over the course of one year...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28041326/pathological-characteristics-of-spine-metastases-treated-with-high-dose-single-fraction-stereotactic-radiosurgery
#8
Evangelia Katsoulakis, Ilya Laufer, Mark Bilsky, Narasimhan P Agaram, Michael Lovelock, Yoshiya Yamada
OBJECTIVE Spine radiosurgery is increasingly being used to treat spinal metastases. As patients are living longer because of the increasing efficacy of systemic agents, appropriate follow-up and posttreatment management for these patients is critical. Tumor progression after spine radiosurgery is rare; however, vertebral compression fractures are recognized as a more common posttreatment effect. The use of radiographic imaging alone posttreatment may makeit difficult to distinguish tumor progression from postradiation changes such as fibrosis...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28031042/transitional-cell-carcinoma-with-extension-of-the-renal-vein-and-ivc-tumor-thrombus-report-of-three-cases-and-literature-review
#9
Mingyang Li, An Shi, Wen Kong, Jin Zhang, Yonghui Chen, Jiwei Huang, Yiran Huang
BACKGROUND: Transitional cell carcinoma (TCC) originating from the renal pelvis with a venous tumor thrombus is a rare entity. However, clinicians should be aware of it because of its high malignancy and poor prognosis. CASE PRESENTATION: Here, we report three cases of pathologically confirmed TCC originating from the renal pelvis with extension into the renal vein or inferior vena cava (IVC). Of these patients, two are males and one is female (58~73 years old)...
December 28, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28030807/high-expression-of-the-long-non-coding-rna-heircc-promotes-renal-cell-carcinoma-metastasis-by-inducing-epithelial-mesenchymal-transition
#10
Jing Xiong, Ying Liu, Shengjun Luo, Li Jiang, Yang Zeng, Zhixiong Chen, Xiaobo Shi, Bufan Lv, Wei Tang
Increasing evidence indicates that long non-coding RNAs (lncRNAs) have been associated with cancer development. However, the contributions of lncRNAs to renal cell carcinoma (RCC) remain poorly characterized. Here, we identified a novel lncRNA, termed HEIRCC, which was up-regulated in RCC tissues through lncRNA microarray analysis and subsequent validation in 60 RCC clinical specimens and cell lines. The high expression of HEIRCC is associated closely with the clinical pathology features such as larger tumor size, poor differentiation, lymphatic metastasis...
December 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/28029648/genomic-differences-between-black-and-white-patients-implicate-a-distinct-immune-response-to-papillary-renal-cell-carcinoma
#11
David J Paulucci, John P Sfakianos, Anders J Skanderup, Kathleen Kan, Che-Kai Tsao, Matthew D Galsky, A Ari Hakimi, Ketan K Badani
Significant disparities in survival, incidence and possibly response to current therapies exist between black and white patients with renal cell carcinoma (RCC). Recent genomic evidence to account for these disparities has been reported for clear cell RCC. However, racial disparities at the genomic level for papillary RCC (pRCC) which is a genetically distinct and less responsive histologic subtype of RCC have not been reported. Using The Cancer Genome Atlas (TCGA) data, the present study assessed gene-level expression, somatic mutation and pathway differences between 58 black and 58 white patients with pRCC propensity matched on age, gender and pathologic T stage...
December 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/28028797/glut1-mct1-4-and-cd147-overexpression-supports-the-metabolic-reprogramming-in-papillary-renal-cell-carcinoma
#12
L M C A Almeida, R Silva, B Cavadas, J Lima, L Pereira, P Soares, M Sobrinho-Simões, J M Lopes, V Máximo
Papillary Renal Cell carcinoma (pRCC) is the second most common type of RCC, accounting for about 15% of all RCCs. Surgical excision is the main treatment option. Still, 10 - 15 % of clinically localized tumours will recur and/or develop metastasis early after surgery, and no reliable prognostic biomarkers are available to identify them. It is known that pRCC cells rely on high rates of aerobic glycolysis, characterized by the up-regulation of many proteins and enzymes related with the glycolytic pathway. However, a metabolic signature enabling the identification of advanced pRCC tumours remains to be discovered...
December 28, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28024966/office-based-ultrasound-guided-renal-core-biopsy-is-safe-and-efficacious-in-the-management-of-small-renal-masses
#13
Chirag N Dave, Brian Seifman, Avinash Chennamsetty, Rene Frontera, Kassem Faraj, Ryan Nelson, Colleen Lucido, Edward W Schervish
OBJECTIVE: To evaluate the safety and efficacy of ultrasound (US)-guided percutaneous renal mass biopsy (RMB) performed in the office setting by urologists. MATERIALS AND METHODS: This is a retrospective study involving patients who underwent office-based US-guided percutaneous RMB between April 2010 and October 2015. Baseline vital signs and US were performed prior to the procedure. Patients were then observed for 1 hour after the procedure and repeat vital signs and US were performed...
December 23, 2016: Urology
https://www.readbyqxmd.com/read/28011277/large-cystic-metanephric-adenoma-in-a-15-year-old-girl
#14
Amanda F Saltzman, Alonso Carrasco, Michael A Maccini, Brian T Caldwell, Amy L Treece, Nicholas G Cost
Metanephric adenoma is a rare pediatric renal tumor, generally considered to be benign. It can be difficult to distinguish from Wilms tumor and renal cell carcinoma based on imaging alone, and even may be difficult on histopathologic analysis. We present a case of a large cystic metanephric adenoma managed with surgical resection. This case highlights the difficulty in managing cystic renal lesions in children and adolescents as there is a paucity of data on the radiologic and pathologic correlation in such patients...
December 20, 2016: Urology
https://www.readbyqxmd.com/read/28011005/the-enduring-patency-of-primary-inferior-vena-cava-repair
#15
Neel A Mansukhani, George E Havelka, Irene B Helenowski, Heron E Rodriguez, Andrew W Hoel, Mark K Eskandari
BACKGROUND: Inferior vena cava repair after planned and unplanned venotomy is performed by either interposition bypass, patch venopasty, or lateral venorrhaphy and primary repair. Primary repair of the inferior vena cava avoids the use of foreign material and allows an all-autologous repair in an expeditious fashion. The purpose of this study was to demonstrate the utility of inferior vena cava repair, determine the degree of inferior vena cava stenosis, and examine clinical outcomes after primary repair...
December 20, 2016: Surgery
https://www.readbyqxmd.com/read/28003679/acute-bowel-injury-due-to-cryoablation-for-renal-cell-carcinoma-correlated-radiologic-and-pathologic-findings
#16
Hideo Gobara, Takao Hiraki, Toshihiro Iguchi, Hiroyasu Fujiwara, Takeshi Nagasaka, Hiroyuki Kishimoto, Takehiro Tanaka, Susumu Kanazawa
An 87-year-old Japanese man underwent percutaneous cryoablation (PCA) therapy for his renal cell tumor. We displaced the colon from the tumor using hydrodissection. Computed tomography (CT) immediately after PCA was indicative of iceball extension to the colon wall, and a discontinuous enhancement of the colon wall was observed. We therefore performed an emergency surgery. On laparotomy, we observed a dark-purple area on the affected area of the colon, and the resected specimen showed focal, deep ulceration on the mucosal surface...
December 2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/27999886/correlation-between-ct-perfusion-parameters-and-fuhrman-grade-in-ptlb-renal-cell-carcinoma
#17
Chao Chen, Qinqin Kang, Qiang Wei, Bing Xu, Hui Ye, Tiegong Wang, Yayun Lu, Jianping Lu
PURPOSE: To evaluate the correlation of CT perfusion parameters with the Fuhrman grade in pT1b (4-7 cm) renal cell carcinoma (RCC). METHODS: CT perfusion imaging and Fuhrman pathological grading of pT1b RCC were performed in 48 patients (10 grade 1, 27 grade 2, 9 grade 3, and 2 grade 4). Equivalent blood volume (BV Equiv), permeability surface area product (PS), and blood flow (BF) of tumors were measured. Grade 1 and 2 were defined as low-grade group (n = 37), meanwhile high-grade group (n = 11) included grade 3 and 4...
December 20, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27999828/a-case-of-abdominal-mesenteric-castleman-s-disease-with-left-renal-cell-carcinoma-and-stomach-leiomyoma
#18
Shunjun Chen, Lele Song, Xinli Xie, Xingmin Han, Bing Cheng
: A rare case of abdominal mesenteric Castleman's disease with left renal cell carcinoma and stomach leiomyoma is reported. A 57 years old male patient was transferred to our hospital for investigation of a left kidney tumor. Physical examination and routine laboratory tests were normal. Multi mode imaging by 64-slices spiral computed tomography (CT) scan, the enhanced CT scan and the fluorine-18-fluorodeoxyglucose positron emission tomography/CT ((18)F-FDG PET/CT) scan were applied. Computed tomography showed a 5...
September 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27993666/patterns-and-predictors-of-recurrence-after-partial-nephrectomy-for-kidney-tumors
#19
Pascal Mouracade, Onder Kara, Matthew J Maurice, Julien Dagenais, Ercan Malkoc, Ryan J Nelson, Jihad H Kaouk
PURPOSE: To identify patterns and predictors of recurrence in patients with clinically localized renal cell carcinoma (CLRCC) managed with partial nephrectomy (PN). MATERIALS AND METHODS: Retrospective study of 830 consecutive cases of PN done between 2007 and 2015 for CLRCC at a single institution. Patient demographics, and pathological characteristics were correlated with recurrence patterns (overall, local and distant) and overall survival (OS) using Kaplan-Meier and cox regression analyses...
December 16, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27959744/is-multiparametric-mri-useful-for-differentiating-oncocytomas-from-chromophobe-renal-cell-carcinomas
#20
Chloe Galmiche, Jean-Christophe Bernhard, Mokrane Yacoub, Alain Ravaud, Nicolas Grenier, François Cornelis
OBJECTIVE: The purpose of this study was to retrospectively evaluate the diagnostic accuracy of multiparametric MRI to differentiate oncocytoma from chromophobe renal cell carcinoma (RCC). MATERIALS AND METHODS: In this retrospective study, 26 histologically confirmed oncocytomas and 16 chromophobe RCCs that underwent full MRI examination were identified in 42 patients (25 men and 17 women) over a 6-year period. Demographic data were recorded. Double-echo chemical-shift, dynamic contrast-enhanced T1- and T2-weighted images, and apparent diffusion coefficient (ADC) maps were reviewed independently by two radiologists blinded to pathologic results...
December 13, 2016: AJR. American Journal of Roentgenology
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