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renal cell carcinoma radiology

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https://www.readbyqxmd.com/read/28076021/radiologic-assessment-of-native-renal-vasculature-a-multimodality-review
#1
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/28050384/inflammatory-myofibroblastic-tumor-of-the-kidney-a-rare-renal-tumor
#2
Alvin Jose Pothadiyil, Suresh Bhat, Fredrick Paul, Jithesh Mampatta, Mahesh Srinivas
Inflammatory Myofibroblastic Tumour (IMT) or 'pseudotumour' of the kidney is a rare benign tumour of unknown aetiology affecting mostly young adults. A subset of IMT is neoplastic and harbours translocations of activin receptor-like kinase-1 (ALK-1) gene and can recur or rarely metastasize. Presentation varies from an incidentaloma to gross haematuria. Clinical examination and radiological investigations are usually inconclusive. Often, biopsy is inconclusive necessitating a management similar to that of Renal Cell Cancer (RCC)...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050234/how-to-assess-the-efficacy-or-failure-of-targeted-therapy-deciding-when-to-stop-sorafenib-in-hepatocellular-carcinoma
#3
REVIEW
Jean-Luc Raoul, Xavier Adhoute, Marine Gilabert, Julien Edeline
Sorafenib is thus far the only systemic treatment for hepatocellular carcinoma (HCC) based on the results of two randomized controlled trials performed in Western and in Eastern countries, despite a poor response rate (from 2% to 3.3%) following conventional evaluation criteria. It is now recognized that the criteria (European Association of the Study of the Liver criteria, modified response evaluation criteria in solid tumors) based on contrast enhanced techniques (computed tomography scan, magnetic resonance imaging) aimed to assess the evolution of the viable part of the tumor (hypervascularized on arterial phase) are of major interest to determine the efficacy of sorafenib and of most antiangiogenic drugs in patients with HCC...
December 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/28042792/-cystic-nephroma-report-of-two-cases-and-bibliographic-review
#4
E Rodríguez-Zarco, S Pabon-Carrasco, C Romero-Abrio, F J Vázquez-Ramírez
OBJECTIVE: Multicystic nephroma (multilocular cystic nephroma, multilocular cyst) is a relatively rare benign neoplasm of the kidney. Most patients are asymptomatic and tumours are usually discovered incidentally. METHODS: Between 2010 and 2015, 2 patients with cystic nephroma at our institution were diagnosed and treated. Our study includes two new cases of cystic nephroma and a review of the literature about the differential diagnosis of a cystic renal mass. RESULTS: In this report we present two cases of multilocular cystic nephroma in a 75-year-old-female and a 33-year-old female...
December 2016: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28027741/transarterial-embolization-tae-as-add-on-to-percutaneous-radiofrequency-ablation-rfa-for-the-treatment-of-renal-tumors-review-of-the-literature-overview-of-state-of-the-art-embolization-materials-and-further-perspective-of-advanced-image-guided-tumor-ablation
#5
REVIEW
C M Sommer, L Pallwein-Prettner, D F Vollherbst, R Seidel, C Rieder, B A Radeleff, H U Kauczor, F Wacker, G M Richter, A Bücker, T Rodt, A Massmann, P L Pereira
Percutaneous radiofrequency ablation (RFA) for the treatment of stage I renal cell carcinoma has recently gained significant attention as the now available long-term and controlled data demonstrate that RFA can result in disease-free and cancer-specific survival comparable with partial and/or radical nephrectomy. In the non-controlled single center trials, however, the rates of treatment failure vary. Operator experience and ablation technique may explain some of the different outcomes. In the controlled trials, a major limitation is the lack of adequate randomization...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28011277/large-cystic-metanephric-adenoma-in-a-15-year-old-girl
#6
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/28006956/findings-and-impact-of-early-imaging-after-partial-nephrectomy
#7
Ryan W Tubre, William P Parker, Travis Dum, Tim Walmann, Zachary Hamilton, Moben Mirza, David A Duchene
INTRODUCTION: AUA Guidelines for surveillance of renal cell carcinoma after partial nephrectomy recommend imaging within 3-12 months of surgery. Imaging following partial nephrectomy may be difficult to interpret due to the surgical defect, the use of surgical material, and normal post-operative fluid collections. Our primary objective was to evaluate the frequency of indeterminate post-operative imaging results and how those radiographic findings altered patient management. METHODS: Retrospective chart review from 2006 to 2013 of patients who had undergone open, laparoscopic, and robotic partial nephrectomy at our institution was completed...
December 22, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/28003679/acute-bowel-injury-due-to-cryoablation-for-renal-cell-carcinoma-correlated-radiologic-and-pathologic-findings
#8
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/27999919/interventional-radiology-management-of-a-ruptured-lumbar-artery-pseudoaneurysm-after-cryoablation-and-vertebroplasty-of-a-lumbar-metastasis
#9
Aldo Victor Giordano, Francesco Arrigoni, Federico Bruno, Sergio Carducci, Marco Varrassi, Luigi Zugaro, Antonio Barile, Carlo Masciocchi
We describe the management of a complication (a lumbar artery pseudoaneurysm and its rupture) after combined procedure (cryoablation and vertebroplasty) on a lumbar (L2) metastasis from renal cell carcinoma. Review of the literature is also presented with discussion about the measures to be taken to prevent these types of complications.
December 20, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27957371/a-rare-cause-of-nasal-obstruction-metastatic-renal-cell-carcinoma
#10
Tuba Dilay Kokenek-Unal, B Gumuskaya, B Ocal, Murat Alper
Introduction. Renal cell carcinoma can present with several interesting symptoms, paraneoplastic syndromes, and unusual metastatic sites. Head and neck region is one of the rare locations for renal cell carcinoma metastasis. Case Report. A 50-year-old man was admitted to the hospital with nasal congestion and snoring. Physical examination revealed nasal serous secretion. First taken biopsy was misinterpreted. The symptoms of the patient were not revealed and he was readmitted to the hospital. On radiologic examination, a vascular rich mass in maxillary sinus extending to the nasal cavity was observed...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27923360/tumour-response-in-metastatic-renal-cell-carcinoma-treated-with-tyrosine-kinase-inhibitors-assessment-of-intra-tumour-heterogeneity
#11
EDITORIAL
Viktoria Stühler, Jens Bedke
Intra-tumour heterogeneity is a common molecular phenomenon in metastatic clear cell renal carcinoma (mRCC), representing the genetic complexity of a tumour with multiple metastatic sites. The present commentary discusses the observed phenomena of phenotypic intra-tumour heterogeneity in mRCC patients treated with the tyrosine kinase inhibitors sunitinib or pazopanib. Here, drug response can be different on the level of each evaluated metastasis in the individual patient. This questions the currently used radiologic staging systems of RECIST criteria and demands for a modification of radiologic response assessment with the consequence of a patient-tailored therapy in the clinical setting...
December 7, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27878338/reporting-standards-for-the-imaging-based-diagnosis-of-renal-masses-on-ct-and-mri-a-national-survey-of-academic-abdominal-radiologists-and-urologists
#12
Matthew S Davenport, Eric M Hu, Andrew D Smith, Hersh Chandarana, Khaled Hafez, Ganesh S Palapattu, J Stuart Wolf, Stuart G Silverman
PURPOSE: To define important elements of a structured radiology report of a CT or MRI performed to evaluate an indeterminate renal mass. METHODS: IRB approval was waived for this multi-site prospective quality improvement study. A 35-question survey investigating elements of a CT or MRI report describing a renal mass was created through an iterative process by the Society of Abdominal Radiology Disease-Focused Panel on renal cell carcinoma. Surveys were distributed to consenting abdominal radiologists and urologists at nine academic institutions...
November 22, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27867332/predictive-ability-of-preoperative-ct-scan-in-determining-whether-the-adrenal-gland-is-spared-at-radical-nephrectomy
#13
Gregory J Nason, Asadullah Aslam, Subhasis K Giri
INTRODUCTION: The aim of this study was to assess whether preoperative multiple detector computed tomography (MDCT) accurately predicts adrenal involvement for patients undergoing non-adrenal sparing radical nephrectomy for renal cell carcinoma. METHODS AND MATERIALS: A retrospective observational study based on a composite patient population of two university teaching hospitals who underwent radical nephrectomy. Sensitivity, specificity, overall accuracy, positive and negative predictive values and likelihood ratios were calculated from radiological reports...
October 2016: Current Urology
https://www.readbyqxmd.com/read/27857461/bolster-material-granuloma-masquerading-as-recurrent-renal-cell-carcinoma-following-partial-nephrectomy
#14
Abhishek Singh, Shrikant Jai, Sanika Ganpule, Arvind Ganpule
Nephron sparing surgery has seen a phenomenal rise in its application over the past few decades. The use of Surgicel and gel foam for closure of defect created after partial nephrectomy has become a routine practice at many centers. In this case report, we describe radiological artifact secondary to a surgical bolster mimicking a residual disease or an early recurrence in the kidney. This case highlights two facts; first, reapproximation of the renal tissue is best done without the use of Surgicel bolsters...
July 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/27842541/heterogeneous-response-and-progression-patterns-reveal-phenotypic-heterogeneity-of-tyrosine-kinase-inhibitor-response-in-metastatic-renal-cell-carcinoma
#15
Shanthini M Crusz, Yen Zhi Tang, Shah-Jalal Sarker, Warner Prevoo, Irfan Kiyani, Luis Beltran, John Peters, Anju Sahdev, Axel Bex, Thomas Powles, Marco Gerlinger
BACKGROUND: Molecular intratumour heterogeneity (ITH) is common in clear cell renal carcinomas (ccRCCs). However, it remains unknown whether this is mirrored by heterogeneity of drug responses between metastases in the same patient. METHODS: We performed a retrospective central radiological analysis of patients with treatment-naïve metastatic ccRCC receiving anti-angiogenic tyrosine kinase inhibitors (TKIs) (sunitinib or pazopanib) within three similar phase II trials...
November 14, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27793960/u-s-food-and-drug-administration-approval-cabozantinib-for-treatment-of-advanced-renal-cell-carcinoma
#16
Harpreet Singh, Michael Brave, Julia A Beaver, Joyce Cheng, Shenghui Tang, Eias Zahalka, Todd R Palmby, Rajesh Venugopal, Pengfei Song, Qi Liu, Chao Liu, Jingyu Yu, Xiao Hong Chen, Xing Wang, Yaning Wang, Paul G Kluetz, Selena R Daniels, Elektra J Papadopoulos, Rajeshwari Sridhara, Amy E McKee, Amna Ibrahim, Geoffrey Kim, Richard Pazdur
On April 25, 2016, the U. S. Food and Drug Administration (FDA) approved cabozantinib (CABOMETYX{trade mark, serif}, Exelixis, Inc.) for the treatment of advanced renal cell carcinoma (RCC) in patients who have received prior anti-angiogenic therapy. The approval was based on data from one randomized, open-label, multicenter study in which RCC patients who had received prior anti-angiogenic therapy were treated with either cabozantinib 60 mg orally once daily (N=330) or everolimus 10 mg orally once daily (N=328)...
October 28, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27787547/adjuvant-weekly-girentuximab-following-nephrectomy-for-high-risk-renal-cell-carcinoma-the-ariser-randomized-clinical-trial
#17
Karim Chamie, Nicholas M Donin, Pia Klöpfer, Paul Bevan, Barbara Fall, Olaf Wilhelm, Stephan Störkel, Jonathan Said, Michael Gambla, Robert E Hawkins, Gustavo Jankilevich, Anil Kapoor, Evgeny Kopyltsov, Michael Staehler, Kimmo Taari, Alberto J A Wainstein, Allan J Pantuck, Arie S Belldegrun
Importance: Girentuximab is a chimeric monoclonal antibody that binds carbonic anhydrase IX, a cell surface glycoprotein ubiquitously expressed in clear cell renal cell carcinoma (ccRCC). Its safety and activity in phase 2 studies prompted investigation into its use as adjuvant monotherapy in participants with high-risk ccRCC. Objective: To evaluate the safety and efficacy of adjuvant girentuximab on disease-free survival (DFS) and overall survival (OS) in patients with localized completely resected high-risk ccRCC...
October 27, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27761149/endoscopic-ultrasound-guided-fine-needle-aspiration-cytology-of-metastatic-renal-cell-carcinoma-to-the-pancreas-a-multi-center-experience
#18
Rahul Pannala, Karyn M Hallberg-Wallace, Amber L Smith, Aziza Nassar, Jun Zhang, Matthew Zarka, Jordan P Reynolds, Longwen Chen
INTRODUCTION: The increasing use of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) cytology to examine pancreatic neoplasms has led to an increase in the diagnosis of metastases to the pancreas. Renal cell carcinoma (RCC) is the most common metastasis to the pancreas. Our study examines 33 cases of metastatic RCC to the pancreas sampled by EUS-FNA from four large tertiary care hospitals. MATERIALS AND METHODS: We searched the cytopathology database for RCC metastatic to the pancreas diagnosed by EUS-FNA from January 2005 to January 2015...
2016: CytoJournal
https://www.readbyqxmd.com/read/27737652/ct-guided-cryoablation-for-locally-recurrent-or-metastatic-bone-and-soft-tissue-tumor-initial-experience
#19
Michiro Susa, Kazutaka Kikuta, Robert Nakayama, Kazumasa Nishimoto, Keisuke Horiuchi, Sota Oguro, Masanori Inoue, Hideki Yashiro, Seishi Nakatsuka, Masaya Nakamura, Morio Matsumoto, Kazuhiro Chiba, Hideo Morioka
BACKGROUND: Historically, local control of recurrent sarcomas has been limited to radiotherapy when surgical re-resection is not feasible. For metastatic carcinomas to the bone or soft tissue, radiotherapy and some interventional radiology treatment along with other systemic therapies have been widely advocated due to the possibility of disseminated disease. These techniques are effective in alleviating pain and achieving local control for some tumor types, but it has not been effective for prolonged local control of most tumors...
October 13, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27729042/diagnostic-accuracy-of-contrast-enhanced-computed-tomography-and-contrast-enhanced-magnetic-resonance-imaging-of-small-renal-masses-in-real-practice-sensitivity-and-specificity-according-to-subjective-radiologic-interpretation
#20
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
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