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Retroperitoneal tumor

Ibrahim M Hanif, Nilesh H Pawar, Wing Yan Mok, Melvin Chua
Schwannomas are nerve sheath tumors that occur in Schwann cells. They are usually benign, but malignant transformation can occur. Symptomatology depends on the involvement of the surrounding tissues or the mass effect of the tumor. We describe a case of a 28-year-old man who initially presented with right iliac fossa pain associated with radiating pain over the anterior and lateral aspect of his right knee. Following subsequent investigations, we found a retroperitoneal schwannoma of the right lateral femoral cutaneous nerve...
February 21, 2018: Curēus
Yoshiaki Matsumura, Yusuke Iemura, Shinji Fukui, Yoriaki Kagebayashi, Shoji Samma
Iatrogenic urinary tract injuries are known complications of digestive and pelvic surgeries. We retrospectively reviewed 13 patients with bladder injuries and 16 patients with ureteral injuries requiring surgical repair or stent placement in our hospital between 2013 and 2016. Obstetric-gynecologic surgery accounted for 10 bladder injuries and 11 ureteral injuries on hysterectomy and Cesarean section. Digestive surgery led to 1 bladder injury and 5 ureteral injuries on colon resection, and urologic surgery resulted in 1 injury on biopsy of a retroperitoneal tumor...
March 2018: Hinyokika Kiyo. Acta Urologica Japonica
Drew C Baird, Garrett J Meyers, Jocelyn S Hu
Testicular cancer is the most common solid tumor among males 15 to 34 years of age, with an estimated 8,850 new cases and 410 deaths during 2017 in the United States. With effective treatment, the overall five-year survival rate is 97%. Risk factors for testicular cancer include undescended testis (cryptorchidism), personal or family history of testicular cancer, age, ethnicity, and infertility. The U.S. Preventive Services Task Force recommends against routine screening in asymptomatic men. Men with symptoms should receive a complete history and physical examination...
February 15, 2018: American Family Physician
D Vázquez-Vicente, B Fernández Del Bas, J García Villayzán, H A Di Fiore, J Luna Tirado, V Casado Echarren, J García-Foncillas, J Plaza Arranz, L Chiva
BACKGROUND: One aim of this study was to assess the efficacy and safety of laparoscopic paraaortic lymphadenectomy for paraaortic lymph node staging in locally advanced cervical carcinoma. The second aim was to identify prognostic factors in the evolution of this disease and to evaluate how the results of the surgery modify the oncological treatment of patients. MATERIALS AND METHODS: We analyzed 59 patients diagnosed with locally advanced cervical cancer International Federation of Gynecology and Obstetrics stage IB2-IVA who underwent laparoscopic paraaortic lymphadenectomy at our hospital between 2009 and 2015...
April 18, 2018: Clinical & Translational Oncology
Andreas Papatriantafyllou, Theodoros Mavromatis, Theano Demestiha, Dimitrios Filippou, Panagiotis Skandalakis
Spleen preserving laparoscopic distal pancreatectomy is considered as first choice operation for symptomatic benign or small malignant lesions located at the body or tail of the pancreas. The two main surgical techniques that have been proposed and widely adopted for spleen preserving laparoscopic distal pancreatectomy are the Warshaw and Kimura techniques. A novel modified approach for laparoscopic spleen preserving distal pancreatectomy is presented. The technique was initially performed in a 57-year-old female patient with mucinous cystadenoma...
2018: Case Reports in Surgery
Chenyang Wang, Xinyuan Li, Linglong Peng, Xin Gou, Jing Fan
BACKGROUND: Renal angiomyolipoma (AML) is a common benign tumor of the kidney. The main complication of AML is retroperitoneal hemorrhage caused by AML rupture, which can be severe and life threatening. The risk of AML rupture used to be determined by tumor size. However, these criteria have been challenged by series of clinical studies and case reports, suggesting prediction AML rupture based on tumor size is not always reliable. METHODS: The authors searched PubMed using "angiomyolipoma," "AML," and "rupture" and reviewed relevant studies...
April 2018: Medicine (Baltimore)
Chuance Yang, Zhenlong Wang, Shanlong Huang, Li Xue, Delai Fu, Tie Chong
PURPOSE: To present our single-center experience with retroperitoneal laparoscopic partial nephrectomy (LPN) and retroperitoneal laparoscopic radical nephrectomy (LRN) for T1 renal hilar tumors and evaluate which one is better. METHODS: A retrospective review of 63 patients with hilar tumors undergoing retroperitoneal LPN or LRN was performed. The perioperative characteristics, change in estimated glomerular filtration rate (eGFR) from baseline to month 3, and oncologic outcomes were summarized...
April 18, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Amanda F Saltzman, Nicholas G Cost
While testicular germ cell tumors (T-GCTs) make up only 0.5% of pediatric malignancies and less than 2% of adult malignancies, they comprise 14% of adolescent malignancies, making it the most common solid tumor in this age group. The transition in incidence at this age is also accompanied by a transition in tumor histology with adolescents having mostly pure embryonal carcinoma and mixed nonseminomatous germ cell tumors. Similar to T-GCTs of all ages, surgical excision with orchiectomy is the standard initial step in treatment...
2018: Advances in Urology
Michael J Leveridge, D Robert Siemens, Kelly Brennan, Jason P Izard, Safiya Karim, Howard An, William J Mackillop, Christopher M Booth
BACKGROUND: Treatment guidelines for early-stage testicular cancer have increasingly recommended de-escalation of therapy with surveillance strategies. This study was designed to describe temporal trends in routine clinical practice and to determine whether de-escalation of therapy is associated with inferior survival in the general population. METHODS: The Ontario Cancer Registry was linked to electronic records of treatment to identify all patients diagnosed with testicular cancer treated with orchiectomy in Ontario during 2000-2010...
April 16, 2018: Cancer
Zhen Wang, Jianhui Wu, Ang Lv, Chengpeng Li, Zhongwu Li, Min Zhao, Chunyi Hao
This study sought to evaluate the infiltration tendency of retroperitoneal liposarcoma (RPLS) from a new pathological angle by exploring the infiltration characteristics, which could provide helpful information to facilitate surgical decision-making and prognosis prediction. Concurrently, we aim to identify significant indicators of infiltration. A total of 61 consecutive patients with RPLS at our institution were retrospectively analyzed. All patients received extended surgery. The tumor infiltration characteristics and influencing factors were studied based on the pathological diagnosis...
April 15, 2018: Bioscience Trends
Qu Liu, Yuanxing Gao, Zhiming Zhao, Guodong Zhao, Rong Liu, Wan Yee Lau
BACKGROUND: The deep location, narrow operative space and proximity to major vessels make minimally invasive resection of nonadrenal retroperitoneal tumors (NTRs) challenging and rarely reported. This study aimed to evaluate the safety and feasibility of robotic resection of benign nonadrenal retroperitoneal tumors. METHODS: The demographics and perioperative outcomes of a consecutive series of patients who underwent robotic NTR resection between January 1, 2015, and August 30, 2017, were analyzed...
April 12, 2018: International Journal of Surgery
Hirofumi Hasegawa, Shoichi Inokuchi, Dai Kitagawa, Kotaro Shibahara, Satoru Funahashi, Masayuki Kitamura
As the treatment for the liposarcoma, there is no effective chemotherapy and a surgical remedy is required. We present the case of a 64-year-old man who complained about difficulty in swallowing and discomfort of throat. Computed tomography revealed a large enhancing left sided retroperitoneal mass invading the retroperitoneal space and it was displaced to the right. Preoperative diagnosis was retroperitonealmal ignant tumor. Tumor excision were performed and around 4.0 kg tumor was removed though its size was too big and resected it separately...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Özgür Ekinci
OBJECTIVE: The aim of this study was to review our series of pancreatic resection specimen handling results and focus on the positivity of the tumor in various retroperitoneal surgical margins. MATERIAL AND METHOD: Our archival cases from 2008 to 2018 were retrospectively examined, especially for the surgical margins. The demographics, tumor locations, and the diagnoses were recorded. The state of all of the retropancreatic surgical margins (anterior, posterior, superior, inferior, superior mesenteric vein and artery) were recorded...
April 9, 2018: Türk Patoloji Dergisi
Ming-De Huang, Li-Sheng Hsu, Huei-Chieh Chuang, Wei-Yu Lin, Wei-Hsiu Lin, Chih-Wei Yen, Min-Lang Chen
RATIONALE: Adult renal neuroblastoma (NB) is extremely rare, and there have been only a few cases previously described in the literature. We report a case of adult renal NB and summarize the clinical and imaging features of the reported cases. PATIENT CONCERNS: A 41-year-old female was admitted to our hospital with a chief complaint of gross hematuria that had persisted for a month. Nonenhanced computed tomography (CT) revealed a hypodense right renal mass without calcification...
April 2018: Medicine (Baltimore)
Takuya Adachi, Minato Yokoyama, Yasuhisa Fujii, Yuko Kinowaki, Susumu Kirimura, Kazunori Kubota, Yukihisa Saida, Ukihide Tateishi
Neuroblastoma, ganglioneuroblastoma, and ganglioneuroma share the same histological spectrum which originates from neural crest cells. We present herein two young adult patients with neuroblastic tumors with lymph node metastases. Both the patients were diagnosed incidentally as having retroperitoneal masses, which showed little or no immature cells despite coexistence of lymph node involvement. The tumors were considered to represent spontaneous regression of malignant neuroblastoma. Radiologists should consider the possibility of spontaneous regression of neuroblastic tumors, when poorly enhanced multi-component masses at the retroperitoneum with lymph node involvement are visualized...
April 4, 2018: Abdominal Radiology
Levi Y Smucker, Ashley N Hardy, Peter J O'Neil, Roderich E Schwarz
BACKGROUND This report presents therapeutic decision-making and management of refractory, life-threatening duodenal bleeding in a young man with recurrent metastatic retroperitoneal paraganglioma. CASE REPORT The patient had been symptom free for 8 years after radioactive MIBG (metaiodobenzylguanidine) therapy. Failure of endoscopic or angiographic bleeding control led to urgent need to evaluate possible endocrine functional status, tumor curability, safety of incomplete resection, intra- and postoperative support needs, and anticipated recovery potential and postoperative function...
April 2, 2018: American Journal of Case Reports
Xu Yang, Jing He, Yitian Chang, Annie Luo, Ailing Luo, Jiao Zhang, Ruizhong Zhang, Huimin Xia, Ling Xu
BACKGROUND: Neuroblastoma is the most frequently diagnosed extracranial solid tumor in children. Previous studies have shown that single-nucleotide polymorphisms in some genes are associated with the risk of multiple cancers, including neuroblastoma. Although Hox transcript antisense intergenic RNA (HOTAIR) gene polymorphisms have been investigated in a variety of cancers, to the authors' knowledge the relationships between HOTAIR gene polymorphisms and neuroblastoma susceptibility have not been reported to date...
March 30, 2018: Cancer
Florian Chatelet, Armelle Bardier-Dupas, Fabrice Menegaux, Nathalie Chereau
Background: Retroperitoneal schwannomas are extremely rare, as they account for only 3% of retroperitoneal tumors. Clinical symptoms are nonspecific and of late onset, meaning that these tumors are diagnosed at an advanced stage. Surgical resection is required for histological diagnosis and to prevent possible malignant transformation. Celioscopy offers numerous benefits, reducing postoperative pain and speeding up the patient's return to autonomy, but it can pose a real challenge due to the size of these lesions...
March 2018: Journal of Surgical Case Reports
Jeong Il Yu, DO Hoon Lim, Hee Chul Park, Sang Hoon Jung, Seong Jin Jeon, Heerim Nam, Bokyoung Kim, Sung-Joo Kim, Jae Berm Park
BACKGROUND/AIM: We investigated the effectiveness and safety of using a tissue expander (TE) for adjuvant helical tomotherapy (HT) for curatively resected retroperitoneal sarcoma (RPS). MATERIALS AND METHODS: This study was conducted with 60 RPS patients who underwent curative resection with or without TE insertion followed by HT from June 2009 to December 2016. Among the patients, TE was inserted in 37 (61.7%). The quality of TE insertion was evaluated. Median follow-up after surgery was 19...
April 2018: Anticancer Research
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