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https://www.readbyqxmd.com/read/27919125/-a-case-report-spontaneous-rupture-of-chromophobe-renal-cell-carcinoma
#1
Masayuki Takata, Masanori Kohno, Kazuto Komatsu, Hiroshi Yoshida
A 31-year-old man presented with sudden right flank pain. We found a right renal tumor with a perirenal hematoma on enhanced abdominal computed tomography (CT), which suggested spontaneous rupture of the renal tumor. The tumor was located at the upper pole of the right kidney, and was not enhanced. Magnetic resonance imaging (MRI) showed slightly enhanced renal tumor, and positron emission tomography (PET) showed a hot spot in the renal mass. His anemia was getting worse, and we assumed that the renal mass was malignant...
October 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/27897036/computed-tomography-and-magnetic-resonance-findings-of-fat-poor-angiomyolipomas
#2
Aaron Potretzke, Theodora A Potretzke, Tyler Marques Bauman, B Alexander Knight, Alyssa Park, Jonathan M Mobley, Robert S Figenshau, Cary Siegel
INTRODUCTION: Approximately 5% of angiomyolipomas (AMLs) are classified as "fat poor" due to lack of visually detectable fat on imaging, making them difficult to distinguish from renal cell carcinoma. Recent investigations have proposed computed tomography (CT) and magnetic resonance (MR) imaging features suggestive of fat-poor AML (fp-AML). Herein, we determined the frequency of these features in a cohort of fp-AMLs by retrospective review of preoperative imaging. METHODS: A pathology database query from January 2005 to August 2013 identified 49 renal specimens of AML with available imaging...
November 29, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27878756/imaging-findings-of-adrenal-primitive-neuroectodermal-tumors-a-series-of-seven-cases
#3
Y Zhang, P Cai, M Chen, X Yi, L Li, D Xiao, W Liu, W Li, Y Li
OBJECTIVE: To explore the imaging features of adrenal primitive neuroectodermal tumors (PNETs). MATERIALS AND METHODS: This retrospective study included seven patients with surgically and pathologically confirmed adrenal PNETs. Among them, six underwent computed tomography (CT) scans, and one underwent magnetic resonance imaging. The imaging findings, including size, shape, margin, hemorrhage, calcification, cystic degeneration, regional lymph nodes involvement, tumor thrombus formation and enhancement pattern, were retrospectively analyzed...
November 23, 2016: Clinical & Translational Oncology
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
#4
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/27878041/a-prospective-evaluation-of-obesometric-parameters-associated-with-renal-stone-recurrence
#5
Derek Bos, Shawn Dason, Edward Matsumoto, Jehonathan Pinthus, Christopher Allard
INTRODUCTION: Our aim was to evaluate whether obesometric serum hormones and body fat distribution are associated with renal stone recurrence. METHODS: We conducted a prospective cohort study of participants undergoing renal stone (RS) intervention at a single institution from November 2009-June 2010 and followed them for a median 62 months. Obesometric parameters were measured at baseline, including body mass index (BMI), fasting serum leptin and adiponectin, and proportion of visceral adipose tissue (%VAT) averaged from three fixed axial computed tomography (CT) slices...
August 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/27872900/robot-assisted-laparoscopic-renal-schwannoma-excision
#6
Jeremy Kelley, Ryan Collins, Christopher Allam
Background: To report the first case of a renal schwannoma excised with robot-assisted laparoscopy. Case Presentation: A 43-year-old Caucasian female patient with vague abdominal symptoms was noted to have incidental right renal mass. Physical examination and laboratory tests were within normal limits. CT revealed a 4.6 cm heterogeneous enhancing right renal mass arising near the hilum. RENAL nephrometry score was 11a. She was treated by right robot-assisted laparoscopic nephrectomy. She recovered well without complications...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27853915/renal-cell-carcinoma-applicability-of-the-apparent-coefficient-of-the-diffusion-weighted-estimated-by-mri-for-improving-their-differential-diagnosis-histologic-subtyping-and-differentiation-grade
#7
Yulian Mytsyk, Ihor Dutka, Yuriy Borys, Iryna Komnatska, Iryna Shatynska-Mytsyk, Ammad Ahmad Farooqi, Katarina Gazdikova, Martin Caprnda, Luis Rodrigo, Peter Kruzliak
BACKGROUND: Renal cell carcinoma (RCC) represents the most common malignant epithelial neoplasm of the kidney. Accurate assessment of the renal masses, defining the histologic subtype and the grade of differentiation of the tumor, is vital to ensure an adequate case management as well as for staging and prognosis. Recently, diffusion-weighted imaging (DWI) magnetic resonance imaging (MRI) tends to be increasingly appealing for the clinicians as an imaging procedure of choice for the diagnosis and staging of the RCC, which is predetermined by several advantages over CT...
November 16, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27847290/image-guided-radiofrequency-ablation-for-small-renal-masses
#8
REVIEW
Emily F Kelly, Raymond J Leveillee
The diagnosis of incidental small renal masses (SRM) has increased during the past two decades secondary to the increased use of various abdominal imaging modalities. In the past decade there has been a shift from radical nephrectomy to nephron sparing surgery techniques where partial nephrectomy has become the standard of care. Thermal ablation (TA) modalities such as freezing or heating delivered percutaneously for the treatment of small renal masses (SRM) is now offered in many Institutions as a treatment option...
November 12, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27846002/renal-metastasis-from-primary-thyroid-cancer-on-131i-and-mri-imaging
#9
Darshan R Patel, Bhishak H Kamat, Michael D Farwell
A 66-year-old woman with a history of papillary thyroid cancer status after total thyroidectomy underwent I radioiodine ablation therapy 3 months after surgery. Posttherapy whole body planar imaging revealed focal intense I uptake in the posterior right abdomen. SPECT/CT of this region localized the uptake to the medial lower pole of the right kidney. Further evaluation with MRI demonstrated a correlative suspicious right renal mass. The patient underwent right partial nephrectomy with pathology demonstrating that the renal mass was of thyroidal origin (papillary subtype)...
January 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27818946/granulocyte-colony-stimulating-factor-producing-infiltrating-urothelial-carcinoma-of-the-left-renal-pelvis-a-case-report
#10
Takamasa Horiuchi, Ken Shimizu, Kenichi Sasaki, Atsushi Kato, Yukio Homma
We report a case of granulocyte-colony stimulating factor (G-CSF) producing infiltrating urothelial carcinoma of the left renal pelvis. The patient was referred to our hospital for fever and anorexia. Blood tests showed elevated level of leukocytosis without any infectious diseases. The serum concentration of G-CSF was remarkably elevated. Abdominal computed tomography (CT) revealed a huge mass in the left renal pelvis and para-aortic lymph node enlargement. He was underwent left nephroureterectomy and para-aortic lymphadenectomy...
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27810168/ultra-low-dose-low-dose-and-standard-dose-ct-of-the-kidney-ureters-and-bladder-is-there-a-difference-results-from-a-systematic-review-of-the-literature
#11
REVIEW
S Rob, T Bryant, I Wilson, B K Somani
AIM: To investigate whether reducing the radiation dose of computed tomography (CT) of the kidney, ureters, and bladder (KUB) for acute renal colic impacts upon the specificity, sensitivity, and detection of urolithiasis. MATERIALS AND METHODS: A systematic review of the literature over a 20-year period between 1995 and 2015 was conducted of all prospective studies in the English language reporting on adult patients who underwent CT KUB or non-contrast CT for renal colic or urolithiasis...
October 31, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27805457/laparoscopic-radiofrequency-ablation-combined-with-surgical-excision-for-exophytic-renal-angiomyolipoma-a-novel-technique-based-on-tumor-vasculature-features-of-enhancing-renal-masses-toward-hilar-off-clamping-nephron-sparing-surgery
#12
Wei Xiong, Qing Ran, Yangchun Du, Ji Lv, Fang Chen, Shan Zhong, Pu Guo, Ke Dou, Minghan Sun
OBJECTIVES: Symptomatic angiomyolipoma (AML) and asymptomatic AML larger than 4 cm in size are usually treated with nephron-sparing surgery or transarterial embolization. We used radiofrequency ablation to treat the vascular pedicle of exophytic AML with low R.E.N.A.L. nephrometry score and investigated its feasibility for hilar off-clamping nephron-sparing surgery. METHODS: Contrast-enhanced computed tomography (CT) showed enhanced, well-defined lipomatous tumors with a maximum diameter of 4-8 cm in the kidney of 15 patients...
November 2, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27805337/tuberous-sclerosis-with-disseminated-malignancy
#13
Achintya S, Ragesh R, Neeraj Nischal, Manish Soneja, Aanchal Kakkar, Mehar C Sharma, Geethu Anthony, Surabhi Vyas, S K SharmaSenior Professor And Head Department Of Medicine All India Institute Of Medical Sciences Ansari Nagar New Delhi
Tuberous sclerosis is characterized by typical skin and clinical manifestations with predilection to neoplasia. We describe the case of a 42-year old female who presented with a mass and pain in right lumbar region with constitutional symptoms and generalized body aches since last one year. She had adenoma sebaceum, subungual fibromas and hepatomegaly. CT chest, abdomen and MRI revealed mass in the right renal fossa with wide spread extensions in the abdomen, left renal angiomyolipomas (AMLs) and intracerebral lesions...
November 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27795864/histiocytic-sarcoma-in-a-kidney-transplant-patient-a-case-report-and-review-of-the-literature
#14
Maressa Pollen, Siraj El Jamal, Jack Lewin, Varsha Manucha
Objective. Histiocytic sarcoma (HS) is an aggressive neoplasm with only limited number of reported series of cases and rare case reports of occurrence as a posttransplant neoplastic disorder. The etiology and pathogenesis of the disease is unknown and the optimal treatment is still under investigation. We describe an unusual case of HS in a patient with a remote history of kidney transplant. Method and Results. A 54-year-old male with a remote history of renal transplantation under maintenance immunosuppression presented with features of sepsis...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27793862/a-unique-presentation-of-a-complex-haemorrhagic-adrenal-pseudocyst
#15
Ryan James Geleit, Rakesh Bhardwaj, David Fish, Seshadri Sriprasad
A man aged 33 years presented with a 3-day history of left-sided testicular discomfort. Clinical examination revealed a large left-sided varicocele. He was referred for a testicular ultrasound, which demonstrated a moderate left-sided varicocele and an associated large suprarenal mass. An urgent (CT) scan was arranged which confirmed this, with associated compression of adjacent structures, including the left kidney and left renal vessels. The patient was admitted 1 week following the CT scan with features of sepsis...
October 28, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27791362/non-toxic-formulations-of-scintillation-nanocrystals-for-use-as-x-ray-computed-tomography-ct-contrast-agents
#16
Jaewon Lee, Seulgi Choi, Ki Hyun Kim, Hock Gan Heng, Sandra E Torregrosa-Allen, Benjamin S Ramsey, Bennett D Elzey, You-Yeon Won
X-ray computed tomography (CT) is currently one of the most powerful, non-invasive, clinical in vivo imaging techniques, which has resulted from advances in both X-ray device and contrast enhancement technologies. The present study demonstrates, for the first time, that metal tungstates (such as CaWO4) are promising contrast agents for X-ray, radiation and CT imaging, because of the high X-ray mass attenuation of tungsten (W). We have developed a method of formulation, in which CaWO4 (CWO) nanoparticles (NPs) are encapsulated within a bio-compatible poly(ethylene glycol-b-D,L-lactic acid) (PEG-PLA) block copolymer (BCP) capsule...
October 28, 2016: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27790546/bilateral-renal-lymphangiectasia
#17
Vaidehi K Pandya, Maulin K Shah, Shruti P Gandhi, Himanshu V Patel
Renal Lymphangiectasia (RLM) is very rare benign lymphatic malformation. It can be misdiagnosed for other cystic renal masses, most commonly polycystic kidneys. Though incidentally found in most cases, it may be the cause for hypertension and renal failure in undiagnosed patients. Here, we report a case of an adult asymptomatic male with bilateral RLM which was detected as an incidental finding on ultrasound. Confirmation by CT-scan and laboratory diagnosis of aspirated fluid was done, and patient was managed conservatively...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27787749/renal-complex-cystic-masses-usefulness-of-contrast-enhanced-ultrasound-ceus-in-their-assessment-and-its-agreement-with-computed-tomography
#18
REVIEW
Enrique Sanz, Vital Hevia, Victoria Gómez, Sara Álvarez, Jose-Javier Fabuel, Laura Martínez, Rafael Rodriguez-Patrón, Cristina González-Gordaliza, Francisco-Javier Burgos
INTRODUCTION: Around 10 % of renal cell carcinomas (RCC) are cystic, while some benign cysts have complex appearance in conventional diagnostic tests such as computed tomography (CT) or magnetic resonance imaging (MRI). These renal complex cystic masses (RCCMs) are a challenging entity in urological practice and sometimes have a difficult management, requiring surgical removal. Contrast-enhanced ultrasound (CEUS) is a very sensitive test detecting microvascularization in real time, and it has been used in the diagnostic workup of these kinds of lesions...
December 2016: Current Urology Reports
https://www.readbyqxmd.com/read/27777772/urothelial-carcinoma-of-donor-origin-in-a-kidney-transplant-patient
#19
Rosa M Michel Ortega, Daynna J Wolff, Cynthia A Schandl, Harry A Drabkin
BACKGROUND: Malignancy after transplantation is an uncommon multifactorial occurrence. Immunosuppression to prevent graft rejection is described as a major risk factor in malignancy development in the post-transplant state. Donor-derived malignancy is a rare reported complication. Herein, we review our patient history and discuss diagnostic strategies and the implications of immunosuppression for donor-derived malignancy. CASE PRESENTATION: This is a 69-year-old man with post-renal-transplant urothelial carcinoma determined to be of donor origin...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27776324/ewing-sarcoma-primitive-neuroectodermal-tumor-of-the-kidney-a-report-of-three-cases
#20
Maryam Abolhasani, Sareh Salarinejad, Mohammad Kazem Moslemi
INTRODUCTION: Ewing sarcoma/Primitive neuroectodermal tumor of the kidney (ES/PNET) is a member of Ewing's sarcoma family, occurring in young adults and has aggressive clinical behavior and poor prognosis. However, its discrimination from the renal cell carcinoma (RCC) is very difficult preoperatively. We present three cases of this rare disease that were managed in two academic centers. PRESENTATION OF CASES: Herein we report three cases of ES/PNET of the kidney, 2 young men complaining of right flank pain and gross hematuria and one young woman complaining of left subcostal pain...
October 18, 2016: International Journal of Surgery Case Reports
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