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Renal pelvis tumor

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https://www.readbyqxmd.com/read/28673657/image-guided-percutaneous-radiofrequency-ablation-of-central-renal-cell-carcinoma-assessment-of-clinical-efficacy-and-safety-in-31-tumors
#1
Ying Dai, Diego Covarrubias, Raul Uppot, Ronald S Arellano
PURPOSE: To assess clinical efficacy and safety of image-guided percutaneous radiofrequency (RF) ablation of central renal cell carcinoma with adjunctive pyeloperfusion. MATERIALS AND METHODS: Patients with central renal tumors who underwent percutaneous RF ablation between 2005 and 2010 were retrospectively evaluated. Thirty patients with 31 central renal tumors underwent 39 RF ablation sessions. Mean tumor diameter was 3.7 cm (range, 2-7 cm). Median distance between tumor and renal pelvis was 5 mm (range, 0-15 mm)...
July 1, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28668903/laparoscopically-removed-streak-gonad-revealed-gonadoblastoma-in-frasier-syndrome
#2
Kazunori Hashimoto, Y U Horibe, Jiro Ezaki, Toshiyuki Kanno, Nobuko Takahashi, Yoshika Akizawa, Hideo Matsui, Tomoko Yamamoto, Noriyuki Shibata
BACKGROUND: Frasier syndrome (FS) is characterized by gonadal dysgenesis and progressive nephropathy caused by mutation in the Wilm's tumor gene (WT1). We report a case of FS in which diagnosis was based on amenorrhea with nephropathy, and laparoscopically-removed streak gonad which revealed gonadoblastoma. CASE REPORT: At the age of 3 years, the patient developed nephrotic syndrome. This later became steroid-resistant and, by the age of 16 years, had progressed to end-stage renal failure with peritoneal dialysis...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28625477/challenges-and-advances-in-the-diagnosis-biology-and-treatment-of-urothelial-upper-tract-and-bladder-carcinomas
#3
REVIEW
Jeanny B Aragon-Ching
Urothelial carcinomas span the bladder, ureter, and renal pelvis, and while there had been stagnation in the field of drug approval for the past two decades, there is now accelerated and regular US FDA approval of 5 immunotherapy agents. However, patients who inherently do not respond or progress on such therapies still represent an area of increased unmet need. In this special Seminars issue, we explore varying aspects of bladder urothelial carcinoma treatment with targeted therapies, the unique presentation and challenges in the treatment of upper tract and renal pelvis tumors, as well as new and emerging diagnostic imaging tools for varying genitourinary cancers...
July 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28588718/renal-cell-carcinoma-with-synchronous-ipsilateral-urothelial-carcinoma-of-the-renal-pelvis
#4
Qun Lu, Junlong Zhuang, Hongqian Guo
The simultaneous occurrence of renal cell carcinoma (RCC) and urothelial carcinoma (UC) in the same kidney is extraordinarily rare, and is also known as multiple primary malignant tumors. The present study reports the case of a 76-year-old female with synchronous ipsilateral RCC and UC of the renal pelvis, who underwent operation, chemotherapy and reoperation when recurrence of RCC or UC was identified. Cluster of differentiation 44 (CD44) is one of the promising markers for identifying cancer stem cells in various solid tumors, along with aldehyde dehydrogenase 1 A1 (ALDH1A1)...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28554752/diagnostic-utility-of-ki-67-immunohistochemistry-in-small-endoscopic-biopsies-of-the-ureter-and-renal-pelvis
#5
Yuichi Koyama, Teppei Morikawa, Jimpei Miyakawa, Yu Miyama, Tohru Nakagawa, Yukio Homma, Masashi Fukayama
Diagnosis of upper urinary tract urothelial carcinoma in ureteroscopic biopsies is challenging. Therefore, an immunohistochemical marker that can differentiate between malignant and benign urothelium and predict final pathological features is necessary. In this study, we investigated Ki-67 expression in 26 ureteroscopic biopsies of the ureter and renal pelvis diagnosed with urothelial carcinoma (UC) and in 13 biopsies with non-neoplastic urothelium, using digital image analysis. The median Ki-67 labeling index was 1...
April 20, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28538387/prognostic-significance-of-urothelial-carcinoma-with-divergent-differentiation-in-upper-urinary-tract-after-radical-nephroureterectomy-without-metastatic-diseases-a-retrospective-cohort-study
#6
Chuan Qin, En-Li Liang, Zhi-Yong Du, Xiao-Yu Qiu, Gang Tang, Fei-Ran Chen, Bo Zhang, Da-Wei Tian, Hai-Long Hu, Chang-Li Wu
To evaluate the impact of urothelial carcinoma with divergent differentiation (UCDD) on the prognosis of patients for primary upper urinary tract urothelial carcinoma (UTUC) with pN0/x status treated with radical nephroureterectomy (RNU) and to evaluate the prognostic value of UCDD in different tumor locations (renal pelvis and ureter).Data from a total of 346 patients with UTUC who received RNU between January 2012 and March 2016 in the institution were retrospectively analyzed. Clinicopathological features and prognostic factors age, sex, complaint, height, weight, blood pressure, tumor grade, stage, smoking status, history of adjuvant chemotherapy, tumor location, history of bladder cancer, tumor necrosis, degree of hydronephrosis, tumor size, tumor focality, and preoperative anemia were compared between patients with pure UTUC and patients with UCDD...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28525664/near-infrared-fluorescence-with-indocyanine-green-for-diagnostics-in-urology-initial-experience
#7
Andrey O Morozov, Yuri G Alyaev, Leonid M Rapoport, Dmitrii G Tsarichenko, Eugene A Bezrukov, Denis V Butnaru, Eugene S Sirota
INTRODUCTION: Fluorescence imaging with indocyanine green is used in urology for the detection of sentinel lymph nodes and identification of prostate margins in radical prostatectomy for delineation of resection zone and selective clamping of vessels in partial nephrectomy; for identification and evaluation of length of ureteral strictures; for assessment of perfusion and viability of anastomoses during reconstructive stage of cystectomy. Safety of this technique is proven, while its diagnostic value and usefulness is still controversial...
May 16, 2017: Urologia
https://www.readbyqxmd.com/read/28502598/botryoid-wilms-tumor-in-a-2-year-old-boy-a-case-report
#8
Lei Gao, Xiaohao Wang, Guangjie Chen, Yong Huang, Dongyan Zhao, Shan Xu
We report a case of botryoid Wilms tumor that occupied the renal pelvis. A 2-year-old boy was referred to us with a chief complaint of macrohematuria. Ultrasonography, Computed tomography and MRI showed tumor occupying the left renal pelvis. Radical nephroureterectomy was performed. The resected specimen showed a botryoid sarcoma-like appearance, with a pedicle attaching to the pelvicalyceal wall, occupying the left renal pelvis. Histologic findings confirmed botryoid Wilms tumor. Postoperative adjuvant chemotherapy was executed...
May 10, 2017: Urology
https://www.readbyqxmd.com/read/28458455/spontaneous-nephroblastoma-with-oncocytic-differentiation-in-a-japanese-white-rabbit
#9
Osamu Katsuta, Yumi Kuriki-Yamamoto, Toru Shibata, Takaharu Mochizuki, Miwa Yoshimi, Takahisa Noto, Hidetoshi Mano
Spontaneous nephroblastoma is an uncommon tumor in laboratory rabbits. We recently encountered this tumor, and we describe its histological characteristics in this report. A male 3-year-old Japanese White rabbit (JW/kbs), maintained as a stock animal, suddenly showed poor condition and was found dead a few days later. At necropsy, a large mass was found that extended from one side of the renal pelvis. The cut surface of the mass was dark red in color and velvety to the touch. The kidney on the contralateral side was normal...
April 2017: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/28455741/lymphoepithelioma-like-carcinoma-of-the-upper-urinary-tract
#10
Antonio Lopez-Beltran, Gladell Paner, Ana Blanca, Rodolfo Montironi, Toyonori Tsuzuki, Yoji Nagashima, Shi-Sung Chuang, Khin Than Win, Leo Madruga, Maria R Raspollini, Liang Cheng
In this report, we summarized the clinicopathologic features of ten cases of lymphoepithelioma-like carcinoma (LELC) of the upper urinary tract (ureter n = 6; renal pelvis n = 4), a rare variant of urothelial cancer characterized by a malignant epithelial component densely infiltrated by lymphoid cells. The initial diagnosis was made on radical nephrectomy in five cases, nephroureterectomy in three cases, and ureterectomy in two others. Four patients had pathologic stage T1 (n = 2) or T2 (n = 2) tumors, and six patients had stage pT3 disease...
June 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28427128/-the-application-value-of-contrast-enhanced-ultrasound-in-the-surgery-of-renal-masses
#11
M H Liu, J H Shi, Q M H Wangqi, Y Q Lin, Z X Sun
Objective: To investigate the clinical value of contrast-enhanced ultrasound in the diagnosis of renal masses. Methods: A total of 50 patients with renal masses who underwent partial nephrectomy were analyzed from January 2014 to October 2016 in the Department of Urology of China-Japan Union Hospital of Jilin University.In the intraoperative contrast-enhanced ultrasound, the characteristics of ultrasound imaging were recorded including location, size, boundary, echo, real-time internal and peripheral blood and renal pelvis distance, artery, guidance on the selection of surgical methods, intraoperative real-time estimation of the extent of tumor resection...
April 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28422039/-urinary-tract-lymphoepithelial-carcinoma-report-of-two-cases-and-bibliographic-review
#12
REVIEW
Sebastian Valverde Martínez, Waleska Salcedo Mercado, Isabel Rodríguez Cruz, Sara Belén Prieto Nogal, Mario Martín Hernández, Luis Miguel Gómez Tejeda
OBJECTIVE: We report two cases of patients diagnosed with lymphoepithelioma-like carcinomas of the urinary tract. We review the literature of this rare entity. The objective is to clarify the clinical and therapeutic characteristics. METHODS: We present a retrospective review of medical records of two patients diagnosed with lymphoepithelioma-like carcinomas, one in the renal pelvis and the other in the bladder. We review the epidemiology, diagnosis and therapeutic alternatives...
April 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28391777/remarkable-response-to-fluorouracil-leucovorin-oxaliplatin-and-irinotecan-therapy-in-urothelial-cancer-of-the-renal-pelvis-a-case-report
#13
Takuya Tsujino, Kiyoshi Takahara, Tomohisa Matsunaga, Yuki Yoshikawa, Tomoaki Takai, Taizo Uchimoto, Kenkichi Saito, Naoki Tanda, Hajime Hirano, Hayahito Nomi, Naokazu Ibuki, Teruo Inamoto, Haruhito Azuma
BACKGROUND: No standard chemotherapy regimen for advanced urothelial cancer has been established, except for cisplatin-based regimens. We report the case of a patient with double primary cancer, urothelial carcinoma of the upper urinary tract and colorectal cancer, who underwent oxaliplatin-based chemotherapies. CASE PRESENTATION: A 56-year-old Japanese man presented to our hospital with the diagnosis of a left renal pelvic tumor and rectal cancer. Several examinations including ureteroscopic biopsy and computed tomography-guided biopsy were performed; however, the diagnosis of renal pelvic cancer could not be made...
April 10, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28367612/management-of-wilms-tumor-icmr-consensus-document
#14
REVIEW
Maya Prasad, Tushar Vora, Sandeep Agarwala, Siddharth Laskar, Brijesh Arora, Deepak Bansal, Gauri Kapoor, Girish Chinnaswamy, Venkatraman Radhakrishnan, Tanvir Kaur, G K Rath, Sameer Bakhshi
Wilms tumor (WT) is the most common renal tumor of childhood. Although multidisciplinary care including surgery, chemotherapy and radiotherapy have greatly improved the survival rates in WT, there is a scope for further improvement in India and other resource-poor settings. In resource-limited settings, the majority of patients present with large tumors, which may either be unresectable or risky to resect; making preoperative chemotherapy followed by delayed surgery the preferred approach. Histology and staging are used for risk stratification...
April 3, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28352032/aggressive-angiomyxoma-of-transplanted-kidney-mimicking-posttransplant-lymphoproliferative-disorder
#15
Ujjwal Gorsi, Priyanka Naranje, Manish Rathi, Ritambhara Nada, Niranjan Khandelwal
Angiomyxoma is a scarce neoplasm arising from the soft tissues of perineum and pelvis, more commonly seen in the females. For such a tumor to arise in a renal allograft is rare and has previously been reported only in few case. We report a case of aggressive angiomyxoma arising de novo in the renal allograft nine-year posttransplantation. We describe its imaging features on ultrasound and computed tomography which closely mimic the more usual tumor of the transplanted kidney, posttransplant lymphoproliferative disorder and suggest that angiomyxoma may be considered as a differential diagnosis in a case of soft tissue mass arising within the renal allograft...
March 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28325651/genitourinary-paraganglioma-demographic-pathologic-and-clinical-characteristics-in-the-surveillance-epidemiology-and-end-results-database-2000-2012
#16
Stephanie Purnell, Abhinav Sidana, Mahir Maruf, Campbell Grant, Piyush K Agarwal
BACKGROUND: Extra-adrenal paragangliomas (PGLs) are infrequent, benign, and neuroendocrine tumors arising from chromaffin cells of the autonomic nervous system. Most PGLs are sporadic, but up to 32% are associated with inherited syndromes such as neurofibromatosis type 1, von Hippel-Lindau disease, and familial PGL. Although most PGLs develop above the umbilicus, they have been reported in the genitourinary (GU) tract. Owing to the paucity of literature on the rates of GU PGL, the objective of our study is to describe the demographic, pathologic, and clinical characteristics of GU PGL, and compare them to non-GU sites of PGL using the surveillance, epidemiology, and end results (SEER) database...
July 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28249616/tumor-to-tumor-metastases-papillary-thyroid-carcinoma-into-a-clear-cell-renal-cell-carcinoma
#17
Jin Soo Andy Song, S Mark Taylor, Jonathan Trites, Matthew H Rigby, Martin Joseph Bullock, Jennifer Merrimen, Ricardo Rendon, Robert D Hart
BACKGROUND: Thyroid metastases to distant sites are uncommon incidents, most often metastasizing to the lungs and bones. Rates of metastasis to the kidney are particularly low, ranging from 2.8-3.8% for papillary and 6-20% for follicular variants of well-differentiated thyroid cancers (WDTCs). In rare instances, tumor-to-tumor metastasis between two true primary neoplasms can occurs. This medical phenomenon has previously occurred as a clear cell renal cell carcinoma (CCRCC) spreading to a WDTC...
March 1, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28248052/-endoscopic-removal-of-papillary-tumors-of-upper-urinary-tract
#18
G N Akopyan, Yu G Alyaev, A Z Vinarov, L M Rapoport, M A Gazimiev, D G Tsarichenko, E V Shpot, N I Sorokin, A M Dymov, A M Pshikhachev, V Yu Lekarev, G S Akopyan
AIM: To assess the results of organ-sparing endoscopic treatment of patients with tumors of the upper urinary tract (UUT). MATERIALS AND METHODS: Twenty four patients underwent percutaneous and ureteropyeloscopic interventions for tumors of the upper urinary tract and were followed up at the Urology Clinic, I.M. Sechenov First MSMU. Retrograde removal of benign tumors of the renal pelvis and ureter (tumors sized from 5 to 35 mm), percutaneous removal of papillary carcinoma of renal pelvis of a solitary kidney, percutaneous removal of papillary carcinoma of renal pelvis of only one functioning kidney and percutaneous removal of papillary carcinoma of the lower calyx of the L-shaped kidney were performed in 21, 1, 1 and 1 patients, respectively...
December 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247671/-fibroepithelial-polyps-of-renal-pelvis-and-ureter
#19
B G Guliev, B K Komyakov, T Kh Al-Attar
AIM: To analyze the results of surgical treatment of patients with long ureteral fibroepithelial polyps (FEP). MATERIALS AND METHODS: From 2005 to 2014 three patients (1 man and 2 women) with large FEP were observed in our hospital. In 2 patients the base of the polyp was located in the proximal ureter and in 1 patient in the middle calyx of the single kidney. The fibroepithelial polyps were long and extended down to the lower third of the ureter (2) or protruded into the bladder (1)...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28144859/pulmonary-metastasis-from-urothelial-carcinoma-of-the-upper-urinary-tract-29%C3%A2-years-after-nephrectomy
#20
Koji Kawaguchi, Toshiki Okasaka, Takayuki Fukui, Koichi Fukumoto, Shota Nakamura, Shuhei Hakiri, Naoki Ozeki, Kohei Yokoi
BACKGROUND: Late pulmonary metastasis from urothelial carcinoma (UC) of the upper urinary tract is extremely rare. CASE PRESENTATION: A 76-year-old man was referred to our hospital due to an abnormal shadow on chest X-ray. He had a history of left nephrectomy with a diagnosis of UC in the renal pelvis 29 years previously. Computed tomography showed a mass lesion in the right middle lobe of the lung that measured 4.9 cm in diameter. A transbronchial biopsy revealed the tumor to be metastatic pulmonary UC, and he underwent right middle lobectomy of the lung...
December 2017: Surgical Case Reports
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