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renal cell carcinoma radiology

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https://www.readbyqxmd.com/read/28429452/real-world-experience-of-the-feasibility-and-tolerability-of-the-2-1-dosing-schedule-with-sunitinib-in-the-treatment-of-patients-with-advanced-renal-cell-carcinoma-in-australia
#1
Megan Crumbaker, Alexander Guminski, Howard Gurney, Dhanusha Sabanathan, Shirley Wong, Nick Pavlakis
AIM: Sunitinib is a first-line treatment option for metastatic renal cell carcinoma (mRCC) funded by the Australian Pharmaceutical Benefits Scheme. Toxicities are common with the standard schedule leading to alternative dosing schedules to be suggested. We reviewed Australian treatment practices to evaluate the safety and outcomes of patients on a 2 weeks on, 1 week off treatment schedule (2/1). METHODS: We performed a retrospective review of 63 patients with mRCC treated with first-line sunitinib on a 2/1 schedule at four Australian centers...
April 21, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28413382/angiomyolipoma-with-epithelial-cysts-masquerading-as-a-cystic-renal-cell-carcinoma
#2
Andrew Wood, Fiona Young, Marie O'Donnell
Angiomyolipoma with epithelial cysts (AMLEC) is a very uncommon renal tumor. AMLEC has a characteristic histological appearance and immunohistochemical staining pattern, knowledge of which should preclude misdiagnosis by pathologists. We present a rare case of an AMLEC which was suspected to be a cystic renal cell carcinoma radiologically. We describe the characteristic immunological staining pattern and ultrastructural features of this lesion and discuss the potential differential diagnoses.
January 2017: Current Urology
https://www.readbyqxmd.com/read/28376423/a-single-thyroid-nodule-revealing-early-metastases-from-clear-cell-renal-carcinoma-case-report-and-review-of-literature
#3
Marino Di Furia, Andrea Della Penna, Andrea Salvatorelli, Marco Clementi, Stefano Guadagni
INTRODUCTION: We report the case of an incidental solitary renal cancer cell (RCC) thyroid metastatic nodule treated by thyroidectomy. PRESENTATION OF CASE: A 53 year male presented with a solitary, asymptomatic thyroid nodule. He was treated with left nephrectomy 1 year before for a RCC. Radiological standard follow-up was negative for secondary lesions but ultrasound (US) 12 months after surgery revealed a 1.5cm solid nodule in the right lobe of the gland. Fine needle aspiration biopsy (FNAB) was inadequate and the patient was submitted to total thyroidectomy...
March 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28286335/challenging-pitfalls-and-mimickers-in-diagnosing-anastomosing-capillary-hemangioma-of-the-kidney-case-report-and-literature-review
#4
REVIEW
Haneen Adnan Al-Maghrabi, Abdullatif Sami Al Rashed
BACKGROUND Vascular tumors of the kidney are rare tumors that are usually diagnosed and confirmed by histopathological examination due to the difficulty in definitive diagnosis by clinical and radiological examination. Anastomosing hemangioma is a rare variant of capillary hemangioma that mimics angiosarcoma. CASE REPORT Here, we present a case of a 55-year-old female with a history of partial nephrectomy due to clear cell renal cell carcinoma three years earlier, who presented with a contralateral anastomosing capillary hemangioma...
March 13, 2017: American Journal of Case Reports
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
#5
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/28268233/does-computed-tomography-still-have-limitations-to-distinguish-benign-from-malignant-renal-tumors-for-radiologists
#6
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/28260171/renal-tumors-with-low-signal-intensities-on-t2-weighted-mr-image-radiologic-pathologic-correlation
#7
REVIEW
Youyeon Kim, Deuk Jae Sung, Ki Choon Sim, Na Yeon Han, Beom Jin Park, Min Ju Kim, Sung Bum Cho
Accurate characterization of renal masses is essential for ensuring appropriate management. Low T2 signal intensity is a common feature of papillary renal cell carcinoma and fat-poor angiomyolipoma. Nonetheless, other types of renal cell carcinoma, oncocytoma, hemangioma, lymphoma, leiomyoma, and urothelial cell carcinoma also can show low signal intensities on T2-weighted imaging (T2WI). Histopathologic features that can lead to low T2 signal intensities in renal tumors include smooth muscle component, papillary architecture, a high nucleus-to-cytoplasm ratio, and hemorrhage...
March 4, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28202835/-a-very-rare-case-of-diffuse-subependymal-metastases-from-small-cell-lung-carcinoma
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
REVIEW
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
#18
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
#19
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 21, 2016: Urology
https://www.readbyqxmd.com/read/28006956/findings-and-impact-of-early-imaging-after-partial-nephrectomy
#20
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...
March 2017: Journal of Endourology
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