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https://www.readbyqxmd.com/read/27900022/conversion-of-aspergilloma-to-chronic-necrotizing-pulmonary-aspergillosis-following-treatment-with-sunitinib-a-case-report
#1
Yeon Wook Kim, Hyun Woo Lee, Jaeyoung Cho, Han-Sol Choi, Jungsil Lee, Sung Soo Park, Eun Young Heo, Kwang Nam Jin, Deog Kyeom Kim
Semi-invasive or invasive aspergillosis occurring following chemotherapy with sunitinib is a rare condition with unknown incidence and prognosis. Here, we report a case involving a 59-year-old male who had a history of underlying stable aspergilloma and was newly diagnosed with metastatic renal cell carcinoma. Following surgical resection for renal cell carcinoma and adjuvant chemotherapy with sunitinib for 8 months, the patient presented with hemoptysis. Chest computed tomography revealed an increased soft tissue mass and air crescent sign of the underlying aspergilloma, combined with consolidation and bronchial artery hypertrophy around the lesion...
November 2016: Oncology Letters
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/27889280/percutaneous-biopsy-in-large-locally-advanced-or-metastatic-renal-tumors
#3
REVIEW
Tyler A Wittmann, E Jason Abel
INTRODUCTION: The role of percutaneous biopsy to characterize large, locally advanced and metastatic primary renal tumors has not been well described. The goal of this article is to describe the potential advantages of biopsy for preoperative evaluation of patients with large renal tumors and advanced disease. METHODS: Literature was reviewed for percutaneous biopsy and for locally advanced and metastatic renal tumors. RESULTS: Multiple studies have confirmed that percutaneous biopsy is safe, and the cost is minimal relative to the cost of surgical operation...
November 23, 2016: Urologic Oncology
https://www.readbyqxmd.com/read/27884685/bleeding-complications-following-image-guided-percutaneous-biopsies-in-patients-taking-clopidogrel-a-retrospective-review
#4
Matthew Pieper, John Schmitz, Robert McBane, John Knudsen, Brendan McMenomy, Paul Wennberg, Thomas Atwell
PURPOSE: To report incidence of bleeding after image-guided percutaneous core needle biopsy performed in patients taking clopidogrel within 5 days. MATERIALS AND METHODS: This was a retrospective review of image-guided percutaneous core needle biopsies performed in patients with clopidogrel use within 5 days of the procedure between January 2002 and November 2014. Data including biopsy site, needle size, number of samples, and serum coagulation studies were collected...
November 21, 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27874173/identification-and-validation-of-an-8-gene-expression-signature-for-predicting-high-fuhrman-grade-renal-cell-carcinoma
#5
Fangning Wan, Yao Zhu, Chengtao Han, Qinghua Xu, Junlong Wu, Bo Dai, Hailiang Zhang, Guohai Shi, Weijie Gu, Dingwei Ye
Clear cell renal cell carcinoma (ccRCC) is a malignancy with heterogeneous outcomes. Currently, renal mass biopsies are commonly employed to extract disease characteristics and aid prognosis. Although the pathological diagnosis of malignant disease is accurate in contemporary reports, the classification of Fuhrman grade using biopsy specimens is still far from promising. To generate a gene signature to distinguish high-grade ccRCC, we used the Cancer Genome Atlas (TCGA) database to develop a gene expression signature for distinguishing high-grade (G3/4) from low-grade (G1/2) disease...
November 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27822461/retroperitoneal-fibrosis-retrospective-descriptive-study-on-clinical-features-and-management
#6
Ann-Sophie Laroche, Robert Z Bell, Sarah Bezzaoucha, Eva Földes, Caroline Lamarche, Michel Vallée
INTRODUCTION: Retroperitoneal fibrosis (RPF) is a rare condition characterized by the presence of inflammatory and fibrous retroperitoneal tissue that often encases the ureters or abdominal organs. This study describes the clinical characteristics, diagnostic methods, and treatments and their effects on renal function. METHODS: We conducted a retrospective analysis of patients diagnosed with RPF at Maisonneuve-Rosemont Hospital. RESULTS: We identified 17 patients with RPF between 1998 and 2013...
2016: Research and Reports in Urology
https://www.readbyqxmd.com/read/27805337/tuberous-sclerosis-with-disseminated-malignancy
#7
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/27804990/kidney-cancer-undertreatment-of-small-renal-masses-by-overuse-of-biopsy
#8
Hiten D Patel, Phillip M Pierorazio
No abstract text is available yet for this article.
December 2016: Nature Reviews. Urology
https://www.readbyqxmd.com/read/27799660/toward-noninvasive-diagnosis-of-iga-nephropathy-a-pilot-urinary-metabolomic-and-proteomic-study
#9
Michaela Neprasova, Dita Maixnerova, Jan Novak, Colin Reily, Bruce A Julian, Jan Boron, Petr Novotny, Miloslav Suchanek, Vladimir Tesar, Petr Kacer
IgA nephropathy is diagnosed by renal biopsy, an invasive procedure with a risk of significant complications. Noninvasive approaches are needed for possible diagnostic purposes and especially for monitoring disease activity or responses to treatment. In this pilot project, we assessed the utility of urine samples as source of biomarkers of IgA nephropathy. We used spot urine specimens from 19 healthy controls, 11 patients with IgA nephropathy, and 8 renal-disease controls collected on day of renal biopsy. Urine samples were analyzed using untargeted metabolomic and targeted proteomic analyses by several experimental techniques: liquid chromatography coupled with mass spectrometry, immunomagnetic isolation of target proteins coupled with quantitation by mass spectrometry, and protein arrays...
2016: Disease Markers
https://www.readbyqxmd.com/read/27795864/histiocytic-sarcoma-in-a-kidney-transplant-patient-a-case-report-and-review-of-the-literature
#10
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/27794475/constitutional-560-49%C3%A2-kb-chromosome-2p24-3-duplication-including-the-mycn-gene-identified-by-snp-chromosome-microarray-analysis-in-a-child-with-multiple-congenital-anomalies-and-bilateral-wilms-tumor
#11
Mark A Micale, Bedford Embrey, Jacqueline K Macknis, Cheryl E Harper, David J Aughton
Fewer than 100 patients with partial chromosome 2p trisomy have been reported. Clinical features are variable and depend on the size of the duplicated segment, but generally include psychomotor delay, facial anomalies, congenital heart defect, and other abnormalities. We report a 560.49 kb duplication of chromosome 2p in a 13 month-old male with hydrocephaly, ventricular septal defect, partial agenesis of the corpus callosum, and bilateral Wilms tumor. After discovery of bilateral renal masses at four months of age, the child underwent neoadjuvant chemotherapy followed by right radical nephrectomy that revealed triphasic Wilms' tumor...
December 2016: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/27793652/erdheim-chester-disease-presenting-as-a-solid-renal-mass
#12
Matthew B Clements, Jacques Farhi, Noah S Schenkman
Erdheim-Chester disease (ECD) is a rare, systemic histiocytic disorder, usually presenting due to bone manifestations. The most commonly seen urologic manifestation is retroperitoneal fibrosis, leading to ureteral obstruction. We describe a patient with a solid right renal mass, initially concerning for renal cell carcinoma, in addition to diffuse retroperitoneal fibrosis and a chronically obstructed left kidney. The renal mass and retroperitoneal fibrosis are thought to be caused by ECD based on imaging findings and biopsy results...
October 25, 2016: Urology
https://www.readbyqxmd.com/read/27784849/hyperuricemia-as-a-predictive-marker-for-progression-of-nephrosclerosis-clinical-assessment-of-prognostic-factors-in-biopsy-proven-arterial-arteriolar-nephrosclerosis
#13
Kumiko Momoki, Hiroshi Kataoka, Takahito Moriyama, Toshio Mochizuki, Kosaku Nitta
AIM: The influence of serum urate on kidney disease is attracting attention, but the effects of uric acid (UA) on nephrosclerosis have not been elucidated. METHODS: We reviewed data from 45 patients diagnosed with arterial/arteriolar nephrosclerosis. The renal outcomes of the arterial/arteriolar nephrosclerosis patients were assessed by performing logistic and Cox regression analyses. A Kaplan-Meier analysis was used to evaluate the impact of hyperuricemia (HU) on kidney survival...
October 26, 2016: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/27778491/feasibility-of-robot-assisted-segmental-ureterectomy-and-ureteroureterostomy-in-patient-with-high-medical-comorbidity
#14
Ali Abdel Raheem, Atalla Alatawi, Dae Keun Kim, Abulhasan Sheikh, Koon Ho Rha
INTRODUCTION AND OBJECTIVES: Nephroureterectomy remains the gold standard treatment option for upper tract tumors. However, segmental ureterectomy may be another option in patients with single kidney, borderline renal function or high medical comorbidities. The aim of this video is to assess the feasibility of robotic surgery as a minimally invasive technique in treatment of a high comorbid patient with ureteric tumor. MATERIALS AND METHODS: Eighty-year old male patient, with a medical history of chronic hypertensive and uncontrolled Diabetes Mellitus, was referred to our department for treatment of ureteric tumor...
October 20, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27777772/urothelial-carcinoma-of-donor-origin-in-a-kidney-transplant-patient
#15
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/27775441/ca9-as-a-biomarker-in-preoperative-biopsy-of-small-solid-renal-masses-for-diagnosis-of-clear-cell-renal-cell-carcinoma
#16
Guorong Li, Gang Feng, An Zhao, Michel Péoc'h, Michèle Cottier, Nicolas Mottet
PURPOSE: The purpose of our study was to test the utility of CA9 expression in preoperative biopsy samples to identify the clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS: A total of 55 patients with a small solid renal mass (≤4 cm) entered into this study. The immunohistochemical staining (51 samples) and RT-PCR (33 samples) were performed to detect CA9 expression. RESULTS: For immunohistochemistry detection, CA9 was positive in 31/34 of biopsy samples of ccRCCs...
October 24, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/27771479/surgical-management-for-destructive-atlantoaxial-spondyloarthropathy-in-long-term-hemodialysis-patients
#17
Je Hoon Jeong, Hee Kyung Kim, Soo Bin Im
BACKGROUND: Atlantoaxial spondyloarthropathy is most often resulted from rheumatoid arthritis, cancer metastasis and basilar invagination. Dialysis-related spondyloarthropathy is a rare cause of spinal deformity and cervical myelopathy at the atlantoaxial joint. We report two long-term hemodialysis patients who presented with atlantoaxial spondyloarthropathy. CASE DESCRIPTION: Two patients with end-stage renal failure (ESRD) presented with history of progressively worsening neck pain and motion limitation, and gait disturbance...
October 19, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27770513/cytology-diagnosis-of-metastatic-clear-cell-renal-cell-carcinoma-synchronous-to-pancreas-and-metachronous-to-thyroid-and-contralateral-adrenal-report-of-a-case-and-literature-review
#18
Aqiba Bokhari, Patricia G Tiscornia-Wasserman
Renal cell carcinoma metastases to pancreas, thyroid, and contralateral adrenal gland are decidedly uncommon. Clear cell renal cell carcinoma (CCRCC) is the most frequent subtype. Cytology diagnosis may be challenging. A 74-year-old male with remote history of vocal cord malignancy and hypertension presented with abdominal pain. Computed tomography (CT) revealed 8.4 cm left renal mass highly suspicious for renal cell carcinoma, a 1.8 cm mass within vessels near left adrenal and a 2.5 cm mass in pancreatic tail...
October 22, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27769918/extraordinarily-large-renal-cell-carcinoma-with-metasynchronus-neuroendocrine-tumor-of-the-ileocecal-valve-a-rare-presentation-of-disease
#19
Daniel Edwards, Robert Gitman, Noah May, Melanie Amster
A 71 year-old female presented with a large, protuberant abdominal mass and was found to have both a left renal mass and a biopsy-proven neuroendocrine tumor of the ileocecal valve. Ultimately, right hemicolectomy revealed a well-differentiated and low-grade neuroendocrine tumor of the ileocecal valve, while left radical nephrectomy revealed a 23x22x15cm chromophobe renal cell carcinoma (RCC-CT) weighing 3564g. RCC-CT represents a small portion of diagnosed RCC, and generally portends a more favorable prognosis than other variants...
October 18, 2016: Urology
https://www.readbyqxmd.com/read/27761602/calcified-synovial-metastasis-in-the-knee-from-renal-cell-carcinoma-a-case-report
#20
Michael McConnell, Rajendra Kumar, Behrang Amini, Patrick P Lin, Wei-Lien Wang
We present the case of an 83-year-old man who had painful swelling of right knee for 6 months. Radiographs showed a large intra-articular soft-tissue mass with small calcifications, whereas MRI detected a multilobulated intra-articular tumor with bone erosions at the distal femur. Histopathology of ultrasound-guided biopsy specimen of the synovial mass revealed it to be a poorly differentiated metastatic carcinoma. Abdominal computed tomography with intravenous contrast medium administration found a heterogeneously enhancing large right renal mass with calcifications, which was shown to be a renal cell carcinoma on histopathology...
October 20, 2016: Skeletal Radiology
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