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renal cell carcinoma radiology

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https://www.readbyqxmd.com/read/28202835/-a-very-rare-case-of-diffuse-subependymal-metastases-from-small-cell-lung-carcinoma
#1
Ichiro Kawahara, Takashi Fujimoto, Keisuke Ozono, Makoto Hirose, Keisuke Toyoda, Naoki Kitagawa, Tooru Ikeda, Kazuyoshi Uchihashi
While parenchymal metastases are common in solid systemic cancers, subependymal metastases are rare. Approximately half of the reported cases of intraventricular metastases originate from renal carcinoma. A 65-year-old man presented with general fatigue, appetite loss, nausea, and disorientation. Radiological examination revealed diffuse periventricular tumors. The patient underwent an open biopsy via right frontotemporal craniotomy. The patient was diagnosed with metastatic small cell lung carcinoma after histopathological examination...
February 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28193644/tumour-thrombus-of-the-inferior-vena-cava-extending-into-the-right-atrium-in-the-setting-of-colon-cancer
#2
Daniel Meyers, Nancy A Nixon, Angela Franko, Danny Ng, Vincent C Tam
Tumour thrombus is seen in renal cell and hepatocellular carcinoma, but is rarely reported in colorectal cancer. A woman aged 46 years, with metastatic colonic adenocarcinoma, was found to have a large mass in the inferior vena cava (IVC) extending into the right atrium. Although this lesion was initially thought to be bland thrombus, imaging with contrast-enhanced CT scan and contrast-enhanced ultrasound supported the diagnosis of tumour thrombus. Despite the large size of the lesion, the patient was asymptomatic...
February 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28160948/the-radiologist-s-role-in-the-management-of-papillary-renal-cell-carcinoma
#3
M Á Corral de la Calle, J Encinas de la Iglesia, M R Martín López, G C Fernández Pérez, D S Águeda Del Bas
Papillary carcinoma is the second most common renal cell carcinoma. It has a better prognosis than the more frequent clear cell carcinoma, although this does not hold true for advanced cases, because no specific treatment exists. It presents as a circumscribed peripheral tumor (small and homogeneously solid or larger and cystic/hemorrhagic) or as an infiltrating lesion that invades the veins, which has a worse prognosis. Due to their low vascular density, papillary renal cell carcinomas enhance less than other renal tumors, and this facilitates their characterization...
February 1, 2017: Radiología
https://www.readbyqxmd.com/read/28130580/-what-can-should-be-treated-in-kidney-tumors-and-when
#4
C M Sommer, D F Vollherbst, G M Richter, H U Kauczor, P L Pereira
CLINICAL/METHODICAL ISSUE: In the treatment of localized renal cell carcinoma, the lack of randomization in controlled trials on thermal ablation is a major limitation. The latter leads to significant study bias and it ultimately remains unclear whether the improved overall survival in favor of partial nephrectomy can actually be attributed to the treatment method. STANDARD RADIOLOGICAL METHODS: For T1a (≤4 cm) renal cell carcinoma without lymph node and distant metastases, excellent technical and clinical results have been described after imaging-guided radiofrequency ablation and cryoablation...
February 2017: Der Radiologe
https://www.readbyqxmd.com/read/28127177/prognostic-benefit-of-surgical-management-of-renal-cell-carcinoma-invading-the-inferior-vena-cava
#5
REVIEW
Aikaterini Mastoraki, Sotiria Mastoraki, Maria Tsikala-Vafea, Ioannis S Papanikolaou, Andreas Lazaris, Vassilios Smyrniotis, Nikolaos Arkadopoulos
Renal cell carcinoma (RCC) accounts for approximately 3 % of adult malignancies and 90-95 % of neoplasms arising from the kidney. One of the unique features of RCC is the tumor thrombus formation that migrates into the venous system including renal vein (RV) and inferior vena cava (IVC). Only 10 % of patients with RCC present with the classic triad of flank pain, hematuria and defined mass, while 25-30 % of affected patients are asymptomatic. Signs of para-neoplastic syndrome such as hypercalcemia, hypertension, anemia, cachexia and increased erythrocyte sedimentation rate (ESR) are often apparent...
March 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28120570/preoperative-lymphocyte-monocyte-ratio-ameliorates-the-accuracy-of-differential-diagnosis-in-non-metastatic-infiltrative-renal-masses
#6
Jang Hee Han, Young Eun Yoon, Sook Young Kim, Young In Cho, Koon Ho Rha, Young Deuk Choi, Woong Kyu Han
PURPOSE: Distinguishing infiltrative renal cell carcinoma (RCC) from transitional cell carcinoma (TCC) is a challenging issue due to their radiologic similarities. We evaluated systemic inflammatory biomarkers as parameters for distinguishing tumor types. MATERIALS AND METHODS: A computerized search of medical records from November 2005 to October 2015 identified 116 patients with infiltrative renal masses who were difficult to diagnose confirmatively in radiological study...
March 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28076021/radiologic-assessment-of-native-renal-vasculature-a-multimodality-review
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
Ryan W Tubre, William P Parker, Travis Dum, Tim Walmann, Zachary Hamilton, Moben Mirza, David A Duchene
INTRODUCTION: American Urological Association 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 postoperative fluid collections. Our primary objective was to evaluate the frequency of indeterminate postoperative imaging results and how those radiographic findings altered patient management...
January 19, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28003679/acute-bowel-injury-due-to-cryoablation-for-renal-cell-carcinoma-correlated-radiologic-and-pathologic-findings
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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