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renal cell carcinoma radiology

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https://www.readbyqxmd.com/read/29767316/-ceus-diagnosis-of-solid-renal-tumors
#1
REVIEW
K Stock, H Kübler, T Maurer, J Slotta-Huspenina, K Holzapfel
CLINICAL ISSUE: Renal lesions are detected earlier, often as a result of ultrasound examinations. However, the imaging-based differential diagnosis of different tumour entities remains challenging STANDARD RADIOLOGICAL METHODS: All renal tumours >1 cm should be evaluated for malignancy by computed tomography (CT) or magnetic resonance imaging (MRI). If an angiomyolipoma diagnosis cannot be established with imaging, further diagnostics are appropriate or if malignant progression is suspected, then multidisciplinary discussion for TNM-staging based uro-oncologic therapy is usual...
May 16, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29766943/brain-stem-hemangioblastomas-the-seemingly-innocuous-lesion-in-a-perilous-location
#2
Jeena Joseph, Sanjay Behari, Shruti Gupta, Kamlesh Singh Bhaisora, Anish Gandhi, Arun Srivastava, Awadhesh K Jaiswal
Introduction: Hemangioblastomas [75% sporadic, 25% with Von Hippel Lindau (VHL) disease] are highly vascular, benign lesions. The surgical nuances, management, and complication avoidance in brain-stem hemangioblastomas (BHs) have been studied. Material and Methods: Over 18 years, 27(mean age: 29 years; range 15-60 years) consecutive cases of BH underwent microsurgical excision. All patients were assessed clinico-radiologically for neurological deficits and screened for VHL disease...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29730837/contemporary-assessment-of-the-correlation-between-bosniak-classification-and-histological-characteristics-of-surgically-removed-atypical-renal-cysts-uroccr-12-study
#3
François-Xavier Nouhaud, Jean-Christophe Bernhard, Pierre Bigot, Zine-Eddine Khene, François Audenet, Herve Lang, Sebastien Bergerat, Guillaume Fraisse, Nicolas Grenier, François Cornelis, Cosmina Nedelcu, Sofiane Béjar, Gaëlle Fromont-Hankard, Yves Allory, Véronique Lindner, Virginie Verkarre, Laurent Daniel, Mokrane Yacoub, Jean-Michel Correas, Arnaud Méjean, Nathalie Rioux-Leclercq, Karim Bensalah
PURPOSE: To evaluate and compare pathological characteristics of renal cysts Bosniak IIF, III and IV in light of recent histological classification. PATIENTS AND METHODS: The French research network for kidney cancer UroCCR conducted a multicentre study on patients treated surgically for a renal cyst between 2007 and 2016. Independent radiological and centralized pathological reviews were performed for every patient. Pathological characteristics were compared to the Bosniak classification...
May 5, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29728723/pushing-the-limits-of-immune-related-response-a-case-of-extreme-pseudoprogression
#4
Alvin S Wong, Yee-Liang Thian, Jeevesh Kapur, Cheng-Nang Leong, Patrick Kee, Chun-Tsu Lee, Martin B Lee
The advent of immune checkpoint targeted immunotherapy has seen a spectrum of immune-related phenomena in both tumor responses and toxicities. We describe a case of pseudoprogression that pushes the limits of immune-related response criteria and challenges the boundaries and definitions set by trial protocols. A middle-aged man with conventional clear cell renal cell carcinoma (RCC) had received multiple prior systemic treatments including vascular endothelial growth factor receptor tyrosine kinase inhibitors, as well as multiple surgeries and radiotherapy treatments...
May 4, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29713740/radiogenomics-in-renal-cell-carcinoma
#5
Francesco Alessandrino, Atul B Shinagare, Dominick Bossé, Toni K Choueiri, Katherine M Krajewski
Radiogenomics, a field of radiology investigating the association between the imaging features of a disease and its gene expression pattern, has expanded considerably in the last few years. Recent advances in whole-genome sequencing of clear cell renal cell carcinoma (ccRCC) and the identification of mutations with prognostic significance have led to increased interest in the relationship between imaging and genomic data. ccRCC is particularly suitable for radiogenomic analysis as the relative paucity of mutated genes allows for more straightforward genomic-imaging associations...
April 30, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29685402/angiomyolipoma-of-the-kidneys-current-perspectives-and-challenges-in-diagnostic-imaging-and-image-guided-therapy
#6
REVIEW
Abdul Razik, Chandan J Das, Sanjay Sharma
Angiomyolipomas (AML) are benign tumors of the kidneys frequently encountered in radiologic practice in large tertiary centers. In comparison to renal cell carcinomas (RCC), AML are seldom treated unless they are large, undergo malignant transformation or develop complications like acute hemorrhage. The common garden triphasic (classic) AML is an easy diagnosis, however, some variants lack macroscopic fat in which case the radiologic differentiation from RCC becomes challenging. Several imaging features, both qualitative and quantitative, have been described in differentiating the 2 entities...
March 20, 2018: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29684950/-metastases-of-urothelial-carcinoma-with-trophoblastic-differentiation-that-responded-to-combination-chemotherapy-with-gemcitabine-and-oxaliplatin-a-case-report
#7
Masahiro Uchida, Koji Kawai, Masahiro Kurobe, Atsushi Ikeda, Shuya Kandori, Tsuyoshi Endo, Tomoaki Miyagawa, Takahiro Kojima, Masakazu Tsutsumi, Hiroyuki Nishiyama
A 70-year-old man was admitted with complaint of gross hematuria. Cystoscopy and computed tomography (CT) revealed a 2.5 cm nodular tumor in the urinary bladder. Pathological diagnosis after the transurethral resection of bladder tumor (TURBT) was invasive urothelial cancer with trophoblastic differentiation of pT1. The tumor was positively stained with human chorionic gonadotropin (HCG). The serum HCG level was 12.8 IU/l in the fourth week after TURBT, and it increased to 35.7 IU/l in the 20th week after TURBT...
February 2018: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/29650821/-continuation-of-axitinib-for-advanced-renal-cell-carcinoma-by-the-application-of-homecare-urology-a-case-report-and-literature-review
#8
Satoshi Yazawa, Yuji Kato, Jin Nakahara, Toshio Miyata, Mototsugu Oya
A 56-year-old man with advanced RCC and a past medical history of type 2 diabetes underwent a radical left nephrectomy following a histological diagnosis of papillary RCC, G2, INF b, pT3, V1 in 1999. In 2008, sorafenib was started to treat multiple pulmonary metastases of RCC. In 2011, sorafenib was switched to sunitinib when radiologic progression was observed. In 2014, sunitinib was switched to axitinib when further radiologic progression was observed. In 2015, the patient was referred to Yazawa clinic for homecare urology when hospital visits became difficult due to cancer pain and bilateral lower-extremity muscle weakness...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650272/treatment-of-spinal-metastases-in-renal-cell-carcinoma-a-critical-review
#9
REVIEW
Diego Teyssonneau, Marine Gross-Goupil, Charlotte Domblides, Thibaud Haaser, Vincent Pointillart, Amaury Daste, Olivier Hauger, Alain Ravaud
Kidney cancer is the 9th most common cancer in men and the 14th most common in women worldwide. Renal cell carcinoma (RCC) constitutes 90% of all malignancies of the kidney. RCC, is known to be highly vascular and relatively radioresistant. Bone metastases are one of the most common metastatic sites and occur in around 30% of RCCs. They significantly impact the quality of life of patients causing pain and pathological fractures. Spinal metastases represent a particular case with regard to symptoms and treatment...
May 2018: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29607820/assessment-of-sunitinib-alternative-prescription-schedules-in-metastatic-kidney-cancer-a-study-of-10-cases
#10
Habib Diallo, Hasnae Alaoui Mhamdi, Salma Elouarzazi, Mohamed Fadli, Rhizlane Belbaraka
BACKGROUND: Managing metastatic Renal Cell Carcinoma (mRCC) has been revolutionized during the first decade of the 21st century due to the development of targeted therapies. The sunitinib is an oral multi-targeted receptor Tyrosine Kinase Inhibitor (TKI). It became the first targeted therapy as first-line treatment to improve the survival of patients with metastatic kidney cancer. This treatment consists in the oral intake of 50 mg of sunitinib per day in a 6 -week cycle including 4 weeks of treatment intake (the "on" week) followed by a 2-week break (the off week)...
January 2018: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/29599935/bk-virus-associated-collecting-duct-carcinoma-of-the-renal-allograft-in-a-kidney-pancreas-allograft-recipient
#11
Myriam Dao, Adrien Pécriaux, Thomas Bessede, Antoine Dürrbach, Charlotte Mussini, Catherine Guettier, Sophie Ferlicot
BK polyomavirus (BKV) nephropathy is a major concern in renal transplantation. Its main consequence is graft loss, which occurs in more than 50% of the cases. De novo renal cell carcinoma in renal allograft is a very rare event. Most of these tumors are papillary or clear cell carcinomas. We report herein the first case of collecting duct carcinoma of the renal allograft in a kidney-pancreas allograft adult recipient. Collecting duct carcinoma occurs long after the cure of a BKV nephropathy. At this time, BKV viremia and viruria were negative as well as the immunostaining for SV40 in the non-tumor kidney...
March 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29599364/tumor-enhancement-on-dynamic-ct-a-predictive-factor-for-recurrence-after-nephrectomy-in-localized-t1-clear-cell-renal-cell-carcinoma
#12
Junki Maehara, Akihiro Nishie, Yoshiki Asayama, Kousei Ishigami, Yasuhiro Ushijima, Yukihisa Takayama, Daisuke Okamoto, Nobuhiro Fujita, Masaaki Sugimoto, Junichi Inokuchi, Hiroshi Honda
AIM: To investigate whether radiological parameters obtained on dynamic computed tomography (CT), especially those related to tumor enhancement, are predictive factors for recurrence after nephrectomy in localized stage T1 clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS: We retrospectively studied 88 patients with localized stage T1 ccRCC who underwent dynamic CT preoperatively. Seven patients had recurrent disease after surgery. Tumor attenuations were measured by placing a region of interest in the solid region...
April 2018: Anticancer Research
https://www.readbyqxmd.com/read/29577440/intensity-ratio-curve-analysis-of-small-renal-masses-on-t2-weighted-magnetic-resonance-imaging-differentiation-of-fat-poor-angiomyolipoma-from-renal-cell-carcinoma
#13
Shingo Moriyama, Soichiro Yoshida, Hajime Tanaka, Hiroshi Tanaka, Minato Yokoyama, Junichiro Ishioka, Yoh Matsuoka, Kazutaka Saito, Kazunori Kihara, Yasuhisa Fujii
OBJECTIVES: To assess the diagnostic ability of a pixel intensity-based analysis in evaluating the magnetic resonance imaging characteristics of small renal masses, especially in differentiating fat-poor angiomyolipoma from renal cell carcinoma. METHODS: T2-weighted images from 121 solid small renal masses (<4 cm) without visible fat (14 fat-poor angiomyolipomas, 92 clear cell renal cell carcinomas, six chromophobe renal cell carcinomas and nine papillary renal cell carcinomas) were retrospectively evaluated...
March 25, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29550566/cabozantinib-versus-sunitinib-as-initial-therapy-for-metastatic-renal-cell-carcinoma-of-intermediate-or-poor-risk-alliance-a031203-cabosun-randomised-trial-progression-free-survival-by-independent-review-and-overall-survival-update
#14
Toni K Choueiri, Colin Hessel, Susan Halabi, Ben Sanford, M Dror Michaelson, Olwen Hahn, Meghara Walsh, Thomas Olencki, Joel Picus, Eric J Small, Shaker Dakhil, Darren R Feldman, Milan Mangeshkar, Christian Scheffold, Daniel George, Michael J Morris
BACKGROUND: The randomised phase 2 CABOSUN trial comparing cabozantinib with sunitinib as initial therapy for advanced renal cell carcinoma (RCC) of intermediate or poor risk met the primary end-point of improving progression-free survival (PFS) as assessed by investigator. We report PFS by independent radiology review committee (IRC) assessment, ORR per IRC and updated overall survival (OS). PATIENTS AND METHODS: Previously untreated patients with advanced RCC of intermediate or poor risk by IMDC criteria were randomised 1:1 to cabozantinib 60 mg daily or sunitinib 50 mg daily (4 weeks on/2 weeks off)...
May 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29548309/acantholytic-squamous-cell-carcinoma-of-the-lung-with-marked-lymphogenous-metastases-and-high-titers-of-myeloperoxidase-antineutrophil-cytoplasmic-antibodies-a-case-report
#15
Kenji Yorita, Kazuya Tsuji, Yoko Takano, Naoto Kuroda, Kei Sakamoto, Kaoru Arii, Yukio Yoshimoto, Kimiko Nakatani, Satoshi Ito
BACKGROUND: Acantholytic squamous cell carcinoma (ASQCC), histologically characterized by intercellular bridge loosening, is recognized as a rare variant of squamous cell carcinoma (SQCC). ASQCC may demonstrate a worse prognosis than conventional SQCC. Pulmonary ASQCC is particularly rare; its biological behavior and prognostic data have not been reported. CASE PRESENTATION: We report the clinical and autopsy findings of a 71-year-old Japanese man with pulmonary ASQCC...
March 16, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29496470/cystic-renal-cell-carcinoma-a-report-on-outcomes-of-surgery-and-active-surveillance-in-patients-retrospectively-identified-on-pretreatment-imaging
#16
Mahyar Kashan, Mazyar Ghanaat, Andreas M Hötker, Cihan Duzgol, Alejandro Sanchez, Renzo G DiNatale, Kyle A Blum, Maria F Becerra, Brandon J Manley, Jozefina Casuscelli, Michael Chiok, Jonathan A Coleman, Paul Russo, Satish K Tickoo, Oguz Akin, A Ari Hakimi
PURPOSE: We evaluated the outcomes of surgical intervention and active surveillance in patients diagnosed with cystic renal cell carcinoma at our hypothesized radiological cutoff of greater than 50% cystic. MATERIALS AND METHODS: We identified all 430 patients with a pathologically confirmed cystic renal mass that fit our criteria from 2000 to 2015. The 292 patients with a lack of computerized tomography, tumors less than 50% cystic on imaging, multifocal tumors and prior renal cell carcinoma were excluded from study...
March 1, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29464101/pneumatocele-during-sorafenib-therapy-first-report-of-an-unusual-complication
#17
Paloma Sangro, Idoia Bilbao, Nerea Fernández-Ros, Mercedes Iñarrairaegui, Javier Zulueta, J I Bilbao, Bruno Sangro
Sorafenib is a multi-kinase inhibitor and a vascular endothelial growth factor (VEGF) inhibitor approved to treat patients with advanced hepatocellular carcinoma, renal cell carcinoma and differentiated thyroid carcinoma. Its most common side effects are asthenia/fatigue, skin toxicity, diarrhea and arterial hypertension. Reported respiratory adverse reactions include dyspnea, cough, pleural effusion and hoarseness. The aim of this report is to describe for the first time the occurrence of pneumatocele in two patients treated with Sorafenib...
January 19, 2018: Oncotarget
https://www.readbyqxmd.com/read/29453166/skull-metastasis-revealing-a-renal-tumor-a-case-report-and-review-of-the-literature
#18
Mohamed Badri, Ghassen Gader, Kamel Bahri, Ihsen Zammel
BACKGROUND: Renal cell carcinomas represent 85% of malignant renal tumors. Typically, the tumor remains asymptomatic a long time before the appearance of urologic clinical signs. In some cases, metastasis can precede the manifestations of the primary tumor. Different sites are potential metastatic localizations for renal tumors, including skull metastases who represent a very rare location. CASE DESCRIPTION: We report the case of a 65-year-old man presented after the appearance of a skull mass...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29413689/germline-bap1-positive-patients-the-dilemmas-of-cancer-surveillance-and-a-proposed-interdisciplinary-consensus-monitoring-strategy
#19
Phoebe Star, Annabel Goodwin, Rony Kapoor, R Max Conway, Georgina V Long, Richard A Scolyer, Pascale Guitera
The germline BAP1 (BRCA1-associated protein-1) mutation and associated cancer pre-disposition syndrome was first described in 2011. Since then, physicians have considered this diagnosis for patients with a characteristic personal or family history of BAP1-associated tumours (mainly uveal and cutaneous melanoma, pleural/peritoneal mesothelioma, renal cell carcinoma and BAP1-deficient melanocytic lesions). However, a positive germline BAP1 mutation detection creates significant uncertainty in terms of appropriate cancer surveillance...
March 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29399726/renal-embolization-current-recommendations-and-rationale-for-clinical-practice
#20
REVIEW
Raja S Ramaswamy, Olaguoke Akinwande, Tatulya Tiwari
PURPOSE OF REVIEW: Renal embolization (RE) is a minimally invasive endovascular procedure performed primarily by interventional radiology that can be used to treat a variety of urologic conditions including malignant renal tumors, angiomyolipomas, renal trauma, and complications following biopsy. The following review examines renal embolization indications, technique, and potential complications. RECENT FINDINGS: Renal embolization is a versatile therapeutic and adjunctive tool for many acute and chronic urologic conditions...
February 5, 2018: Current Urology Reports
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