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https://www.readbyqxmd.com/read/29155194/a-case-of-prenatally-diagnosed-wilms-tumor-managed-with-laparoscopic-nephrectomy
#1
Amir Toussi, Candace F Granberg, Patricio C Gargollo
We present a case of prenatally diagnosed Wilms' tumor, subsequent operative approach and management. The patient was referred to our institution with an abnormal prenatal renal ultrasound. CT scan after delivery showed a multifocal enhancing left renal mass. She underwent an uncomplicated left laparoscopic radical nephrectomy and retroperitoneal lymph node sampling using a novel hidden incision endoscopic surgery (HIdES) technique. Final pathology revealed favorable histology Stage II Wilms' Tumor. She received adjuvant chemotherapy with Vincristine and Dactinomycin based on the EE4A regimen...
November 16, 2017: Urology
https://www.readbyqxmd.com/read/29151960/r-e-n-a-l-nephrometry-score-a-preoperative-risk-factor-predicting-the-fuhrman-grade-of-clear-cell-renal-carcinoma
#2
Shao-Hao Chen, Yu-Peng Wu, Xiao-Dong Li, Tian Lin, Qing-Yong Guo, Ye-Hui Chen, Jin-Bei Huang, Yong Wei, Xue-Yi Xue, Qing-Shui Zheng, Ning Xu
Objective: The purpose of this study was to evaluate the efficacy and feasibility of the R.E.N.A.L. Nephrometry Score to postoperatively predict high-grade clear-cell renal carcinoma (ccRCC). Methods: The study included 288 patients diagnosed with ccRCC who had complete CT/CTA data and R.E.N.A.L. Nephrometry Scores and underwent renal surgery at our center between January 2012 and December 2015. The relationship between the pathological grade of renal masses and R.E.N.A.L. Nephrometry Score was evaluated. Results: Univariate analysis indicated that diagnostic modality, cystic necrosis, enlargement of the regional lymph node, distant metastasis, clinical T stage, TNM stage, surgical modality, tumor size, nearness of the tumor to the collecting system or sinus, total Nephrometry Score and individual anatomic descriptor components were significantly associated with postoperative tumor grade (P < 0...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29150712/unacylated-ghrelin-and-obestatin-promising-biomarkers-of-protein-energy-wasting-in-children-with-chronic-kidney-disease
#3
Alice Monzani, Michela Perrone, Flavia Prodam, Stefania Moia, Giulia Genoni, Sara Testa, Fabio Paglialonga, Anna Rapa, Gianni Bona, Giovanni Montini, Alberto Edefonti
BACKGROUND: Impairment in orexigenic/anorexigenic hormone balance may be key in the pathogenesis of protein energy wasting in children with chronic kidney disease (CKD). Measurement of ghrelin and obestatin concentrations in children with CKD would help assess the potential contribution of these hormones to uremic protein energy wasting. METHODS: This was a cross-sectional case-control study. Acylated and unacylated ghrelin and obestatin were measured in 42 children on conservative treatment (CT), 20 children on hemodialysis, 48 pediatric renal transplant (RTx) recipients and 43 controls (CTR) (mean age 11...
November 18, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29146893/von-hippel-lindau-disease-with-multi-organ-involvement-a-case-report-and-8-year-clinical-course-with-follow-up
#4
Ali Yaghobi Joybari, Payam Azadeh
BACKGROUND Von Hippel-Lindau (VHL) disease is a rare autosomal dominant syndrome manifested by a spectrum of benign and malignant tumors.  CASE REPORT The patient presented here was a 31-year-old female with unremarkable family history who presented initially complaining of intermittent abdominal pain. Abdominal CT scan revealed an inhomogeneous solid mass (13×9×7 cm) originating from the tail of the pancreas with splenic and gastric invasion as well as several pancreatic cysts. A nucleotide scan showed left adrenal involvement...
November 17, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29134348/machine-learning-based-quantitative-texture-analysis-of-ct-images-of-small-renal-masses-differentiation-of-angiomyolipoma-without-visible-fat-from-renal-cell-carcinoma
#5
Zhichao Feng, Pengfei Rong, Peng Cao, Qingyu Zhou, Wenwei Zhu, Zhimin Yan, Qianyun Liu, Wei Wang
OBJECTIVE: To evaluate the diagnostic performance of machine-learning based quantitative texture analysis of CT images to differentiate small (≤ 4 cm) angiomyolipoma without visible fat (AMLwvf) from renal cell carcinoma (RCC). METHODS: This single-institutional retrospective study included 58 patients with pathologically proven small renal mass (17 in AMLwvf and 41 in RCC groups). Texture features were extracted from the largest possible tumorous regions of interest (ROIs) by manual segmentation in preoperative three-phase CT images...
November 13, 2017: European Radiology
https://www.readbyqxmd.com/read/29124242/growth-kinetics-of-small-renal-mass-initial-analysis-of-active-surveillance-registry
#6
Sung-Woo Park, Seung Soo Lee, Dong Hoon Lee, Jong Kil Nam, Moon Kee Chung
Purpose: To evaluate the clinical safety and natural history of active surveillance (AS) for incidentally diagnosed small renal mass (SRM). Materials and Methods: We analyzed prospective data for patients who underwent AS for SRM. From 2010 to 2016, 37 SRMs of less than 3 cm were registered. Computed tomography (CT) and magnetic resonance imaging were used for initial diagnosis and CT, ultrasonography, and chest CT were performed at 6-month intervals. If there was no change in size during 2 years, follow-ups were performed annually...
November 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29123005/percutaneous-ablation-for-hepatocellular-carcinoma-and-peritoneal-dialysis
#7
Annabel Boyer, Marc-Antoine Jegonday, Antoine Lanot, Maxence Ficheux, Thierry Lobbedez, Clémence Bechade
Hepatocellular carcinoma (HCC) is the second leading cause of death by cancer worldwide. Resection and liver transplantation are the gold standards, but only a minority of people are eligible. Percutaneous ablation therapies, such as microwave ablation (MWA), have consequently been developed. There is a lack of guidelines regarding the treatment of HCCs in end-stage renal disease (ESRD) patients. Here, we report the case of a 67-year-old patient who was undergoing peritoneal dialysis (PD) for chronic congestive heart failure and who presented with an HCC while undergoing PD...
November 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/29122900/a-30-year-delayed-presentation-of-disseminated-histoplasmosis-in-a-heart-transplant-recipient-diagnostic-challenges-in-a-non-endemic-area
#8
Aneela Majeed, Vikas Kapoor, Azka Latif, Tirdad Zangeneh
A 70-year-old man with history of heart transplant performed in 1986, presented with altered mental status. CT scan of brain showed ring-enhancing lesions, raising suspicion for metastatic malignancy. Work-up revealed bilateral adrenal masses, biopsy showed granulomatous changes consistent with histoplasmosis. The possibility of histoplasmosis was less likely as the patient had no prior history of symptomatic disease and had lived in the endemic area 30 years prior to presentation. Brain biopsy confirmed central nervous system involvement...
November 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29097650/leiomyosarcoma-of-the-inferior-vena-cava-in-an-hiv-positive-adult-patient-a-case-report-and-review-of-the-literature
#9
Jing Xu, Arash Velayati, Barbara J Berger, Ming Liu, Naga K Sucharita Cheedella, Vladimir Gotlieb
BACKGROUND Leiomyosarcoma is the most common primary malignancy of the inferior vena cava (IVC), and represents approximately 10% of primary retroperitoneal sarcomas. Leiomyosarcoma presents with non-specific symptoms, including abdominal pain or back pain. There is an increased incidence in immunosuppressed individuals. CASE REPORT An unusual presentation of IVC leiomyosarcoma is reported in a 46-year-old female patient infected with human immunodeficiency virus (HIV) who was on highly active antiretroviral therapy (HAART) and who had a normal CD4 count of 934, who presented with back pain...
November 3, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29079986/percutaneous-image-guided-core-biopsy-of-solid-renal-masses-analysis-of-safety-efficacy-pathologic-interpretation-and-clinical-significance
#10
Nisha Alle, Nelly Tan, Julie Huss, Jiatoi Huang, Allan Pantuck, Steven S Raman
PURPOSE: To determine the efficacy, safety and clinical utility of CT and US-guided percutaneous renal mass biopsy. MATERIALS AND METHODS: A retrospective IRB-approved, HIPAA-compliant study of a cohort of 183 consecutive patients who underwent percutaneous, CT or US-guided renal mass biopsy (RMB) from March 2002 through December 2012 was performed. RMB was performed in 183 consecutive patients for suspected solid renal mass of whom 14/183 (7.7%) were excluded because biopsies were performed at an outside institution, medical records were incomplete, or lesions were poorly visualized...
October 27, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29075488/mucin-poor-and-aggressive-mucinous-tubular-and-spindle-cell-carcinoma-of-the-kidney-two-case-reports
#11
Shiro Uchida, Koyu Suzuki, Mieko Uno, Fumi Nozaki, Chih-Ping Li, Eriko Abe, Teruo Yamauchi, Saya Horiuchi, Minobu Kamo, Kazunori Hattori, Yoji Nagashima
Mucinous tubular and spindle cell carcinoma (MTSCC) is a relatively rare renal epithelial neoplasm. Although MTSCC is considered to be a low-grade and indolent neoplasm, aggressive cases have been recently reported. The present study discussed two additional cases of high-grade MTSCC causing multiple distant metastases with a fatal course. In case 1, a 71-year-old patient presented with hematuria and pyuria. Computed tomography (CT) scan of the right kidney revealed a mass lesion, for which partial nephrectomy was performed...
November 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29071140/a-practical-guide-and-decision-making-protocol-for-the-management-of-complex-renal-cystic-masses
#12
Peter Weibl, Milan Hora, Boris Kollarik, Kristina Kalusova, Tomas Pitra, Mesut Remzi, Wilhelm Hübner, Pascal Balzer, Tobias Klatte
OBJECTIVES: To analyse the management, pathology and outcomes of complex renal cystic masses (CRCM) and to develop a decision-making tool for daily clinical care using the Bosniak classification system for CRCM. PATIENTS AND METHODS: A comprehensive dataset of 185 patients with 188 CRCM and a minimum follow-up of 3 years were analysed for management, pathology and outcomes. RESULTS: We analysed 35 Bosniak II, 34 Bosniak IIF, 58 Bosniak III, and 61 Bosniak IV lesions...
June 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29064751/alternative-response-criteria-and-clinical-risk-factors-for-assessing-tumor-response-in-patients-with-metastatic-renal-cell-carcinoma-who-are-receiving-salvage-therapy
#13
Hyunseon C Kang, Shiva Gupta, Wei Wei, Lina Lu, Marc R Matrana, Nizar M Tannir, Haesun Choi
OBJECTIVE: The purpose of this study is to compare the prognostic value of various solid tumor response criteria as well as the additive value of clinical risk factors in patients with advanced renal cell carcinoma (RCC). MATERIALS AND METHODS: Two sets of CT scans (pretreatment scans and scans obtained 1-3.5 months after treatment) were reviewed for 57 patients with metastatic RCC treated with pazopanib in the salvage setting. Tumor response on the posttherapy scan was evaluated using Response Evaluation Criteria in Solid Tumors (RECIST) and Choi, modified Choi (mChoi), MASS (Morphology, Attenuation, Size, and Structure), and 10% threshold criteria...
December 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29064654/an-unusual-presentation-of-urethral-duplication-presenting-with-chronic-bladder-retention-left-scrotal-transposition-and-left-renal-agenesis
#14
Antonio Macedo, Marcela Leal da Cruz, João Luiz Gomes Parizi, Gustavo Marconi Caetano Martins, Riberto Liguori, Sérgio Leite Ottoni, Bruno Leslie, Gilmar Garrone
INTRODUCTION AND OBJECTIVE: Urethral duplication is a rare congenital anomaly, with roughly 200 cases reported in the literature (1). It is more frequent in males, with few cases reported in females. The clinical presentation differs according to the anatomical variant present. The duplication most commonly occurs in the sagittal plane with one urethra located ventrally and the other dorsally (2). Usually the ventral urethra is the more functional of both. Duplications occurring in the coronal plane are quite rare and they are usually associated with bladder duplication (3)...
October 24, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29041930/renal-cell-like-carcinoma-of-the-nasal-cavity-a-case-report-and-review-of-the-literature
#15
Zhenwei-Chen, Zhaoming-Wang, Hongqi-Shi, Qinwei-Liu
BACKGROUND: Sinonasal renal cell-like carcinoma (SRCLC) is an extremely rare low malignant tumor arising in the sinonasal tract, with histological mimicry of renal cell carcinoma. CASE PRESENTATION: We present a case of sinonasal renal cell-like carcinoma in a 63-year-old male patient. Computer tomography(CT) scanning revealed a soft tissue mass at the left nasal cavity and choana. Histologically, the predominant tumor architecture was follicular to glandular with intervening fibrous septa...
October 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/29027145/novel-biocompatible-au-nanostars-peg-nanoparticles-for-in-vivo-ct-imaging-and-renal-clearance-properties
#16
Daiyuan Tang, Wei Gao, Yajiang Yuan, Lingling Guo, Xifan Mei
Nanoprobes are rapidly becoming potentially transformative tools on disease diagnostics for a wide range of in vivo computed tomography (CT) imaging. Compared with conventional molecular-scale contrast agents, nanoparticles (NPs) promise improved abilities for in vivo detection. In this study, novel polyethylene glycol (PEG)-functionalized Au nanoparticles with star shape (AuNS@PEG) with strong X-ray mass absorption coefficient were synthesized as CT imaging contrast agents. Experimental results revealed that AuNS@PEG nanoparticles are well constructed with ultrasmall sizes, effective metabolisability, high computed tomography value, and outstanding biocompatibility...
October 12, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28988020/management-of-mediastinal-parathyroid-adenoma-via-minimally-invasive-thoracoscopic-surgery-case-report
#17
Saulat Hasnain Fatimi, Hina Inam, Farida Karim Chagan, Usama Khalid Choudry
INTRODUCTION: The most common cause of chronic hypercalcemia is primary hyperparathyroidism (PHPT). However, owing to the diverse presentation of hypercalcemia, the diagnosis often goes unnoticed culminating as a continuum of recurrence of symptoms. Nephrolithiasis, decreased bone mineral density and peptic ulcer disease are the main clinical sequelae. Among the causes of PHPT 80% are caused by parathyroid adenomas (PA). However, only rarely, these adenomas are found ectopically. PRESENTATION OF CASE: We present the case of a 66-year-old female with a history of recurrent renal stones and peptic ulcer disease...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28981185/infective-endocarditis-in-the-setting-of-renal-transplantation-case-report-and-review-of-the-literature
#18
Inbar Nardi Agmon, Elad Goldberg, Eytan Cohen, Ilan Krause
The potent immunosuppressive drugs used by transplant recipients place them at risk of infections. Data on infective endocarditis (IE) in the setting of renal transplantation (RT) are sparse. We describe a 36-year-old woman referred to a tertiary medical center for evaluation of elevated creatinine levels 1 month after a second RT. Work-up revealed the presence of all four of Duke's criteria: fever, persistent bacteremia, new-onset tricuspid regurgitation, and masses suspected to be vegetation attached to the tricuspid annulus...
October 5, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28976346/-analysis-of-success-predictive-factors-in-the-treatment-of-urinary-lithiasis-by-extracorporeal-shock-wave-lithotripsy-patient-optimization-eswl-score
#19
Pablo Garrido-Abad, Miguel Ángel Rodríguez-Cabello, Arturo Platas-Sancho
OBJECTIVE: Extracorporeal shock wave lithotripsy (ESWL) represents one of the most frequently used methods to treat urinary tract calculi. However, sometimes we do not obtain the fragmentation expected. The aim of this study is to evaluate the parameters that may influence ESWL final results, developing a classification for better patient's selection and outcome optimization. METHODS: 270 patients with renal or ureteral stones were retrospectively reviewed after ESWL treatment, recording both clinical parameters (age, sex, location, laterality, body mass index [BMI]), and CT-Scan parameters (stone size and volume, skin-to-stone distance (SSD), mean and maximal stone density)...
October 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28971329/correlation-of-99m-tc-sestamibi-uptake-in-renal-masses-with-mitochondrial-content-and-multi-drug-resistance-pump-expression
#20
Steven P Rowe, Michael A Gorin, Lilja B Solnes, Mark W Ball, Ajuni Choudhary, Phillip M Pierorazio, Jonathan I Epstein, Mehrbod S Javadi, Mohamad E Allaf, Alex S Baras
BACKGROUND: (99m)Tc-sestamibi single-photon emission computed tomography/computed tomography (SPECT/CT) has recently been explored for the characterization of indeterminate renal masses. As judged by increased intra-tumoral radiotracer uptake, we have previously reported the excellent diagnostic performance characteristics of this test for identifying benign/indolent oncocytomas and hybrid oncocytic/chromophobe tumors (HOCTs). In this study, we investigated potential molecular mechanisms underlying the discriminatory ability of (99m)Tc-sestamibi SPECT/CT for renal masses...
October 2, 2017: EJNMMI Research
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