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Retroperitoneal tumor

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https://www.readbyqxmd.com/read/28209949/-surgical-treatment-of-retroperitoneal-masses
#1
A G Kriger, S V Berelavichus, A I Son, D S Gorin, E A Akhtanin, A R Kaldarov, A V Smirnov, P I Davydenko, D V Kalinin
AIM: To improve the results of treatment of patients with retroperitoneal tumors. MATERIAL AND METHODS: The study included 83 patients with retroperitoneal tumors including 57 cases of benign tumors and 26 patients with malignancies. Laparotomy (Lt), robot-assisted (RA) and laparoscopic (Ls) techniques were used in 35, 34 and 14 patients respectively. Median tumor sizes in the largest dimension were 102 mm, 75 mm and 81.5 mm in Lt, RA and Ls groups respectively...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28209545/robot-assisted-laparoscopic-resection-of-renal-vein-leiomyosarcoma
#2
Kathryn Trandem, Monty A Aghazadeh, Alvin C Goh
Leiomyosarcoma is a rare and aggressive retroperitoneal tumor arising from the smooth muscle of the tunica media. The IVC accounts for > 70% of all leiomyosarcomas, with the renal vein being limited to few case reports (1)(2)(3)(4)(5). Accurate pre-operative diagnosis is rare as the origin is unclear and its involvement of the vessels makes biopsy prohibitively dangerous (6). Treatment involves radical nephrectomy followed by adjuvant radiation and/or chemotherapy, with poor prognosis (7)(8). Herein, we describe the laproscopic dissection of a retroperitoneal renal vein tumor using a robotic approach...
February 13, 2017: Urology
https://www.readbyqxmd.com/read/28207528/idiopathic-retroperitoneal-fibrosis-causing-unilateral-ureteral-and-sigmoid-colon-obstruction-a-case-report
#3
Ting Yan, Yujuan Wang, Zhijun Liu, Xiaolei Zhang, Qian Wu, Mingrong Xi
OBJECTIVE: The present report aimed to present a unique case of idiopathic retroperitoneal fibrosis (RPF) presenting features of unilateral ureteral and sigmoid colon obstruction. RPF is a rare disorder with unclear etiology. CASE REPORT: A 43-year-old female had a 10-day history of lower right abdominal and lumbar pain. Gynecological examination, ultrasound, and computed tomography (CT) were all suggestive of right ovarian tumor. An enhanced CT showed right-sided hydronephrosis...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28206943/limited-resection-of-the-duodenum-for-nonampullary-duodenal-tumors-with-review-of-the-literature
#4
Daisuke Hashimoto, Kota Arima, Akira Chikamoto, Katsunobu Taki, Risa Inoue, Takayoshi Kaida, Takaaki Higashi, Katsunori Imai, Toru Beppu, Hideo Baba
The surgical management of duodenal pathology is challenging because of its retroperitoneal position and shared blood supply with the pancreas. We present three types of limited resection of the duodenum for the removal of superficial or small nonampullary duodenal (NADL) lesions, and also a review of the English literature regarding management, such as endoscopic resection and limited duodenal resection. Ten cases underwent limited resections of the duodenum for superficial or small NADL lesions from 2011 to 2015...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28205365/paratesticular-rhabdomyosarcoma-in-children-and-adolescents-outcome-and-patterns-of-relapse-when-utilizing-a-nonsurgical-strategy-for-lymph-node-staging-report-from-the-international-society-of-paediatric-oncology-siop-malignant-mesenchymal-tumour-89-and-95
#5
Timothy Rogers, Veronique Minard-Colin, Nathalie Cozic, Meriel Jenney, Johannes H M Merks, Soledad Gallego, Christine Devalck, Mark N Gaze, Anna Kelsey, Odile Oberlin, Mike Stevens, Richard D Spicer, Christophe Bergeron, Helene Martelli
PURPOSE: To report the results from International Society of Pediatric Oncology (SIOP) Malignant Mesenchymal Tumors studies (MMT 89 and 95) of males with nonmetastatic paratesticular rhabdomyosarcoma. METHODS: From 1989 to 2003, 159 patients were included. Radical inguinal orchidectomy was recommended, but retroperitoneal lymph node (LN) assessment was based on imaging alone. The treatment was stratified by stage (SIOP tumor-node-metastasis staging system) and histology...
February 16, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28193096/dedifferentiated-liposarcoma-of-the-retroperitoneum-with-heterologous-osteosarcomatous-differentiation-and-a-striking-aneurysmal-bone-cyst-like-morphology
#6
Carole Van Haverbeke, Jo Van Dorpe, Evelyne Lecoutere, Uta Flucke, Liesbeth Ferdinande, David Creytens
A 69-year-old woman with a 10-year medical history of recurrent retroperitoneal dedifferentiated liposarcoma presented with a 3-cm large hemorrhagic and multicystic left-sided retroperitoneal mass. Histopathological examination of the resected specimen showed a heterogeneous, high-grade mesenchymal nonlipogenic tumor with areas of osteoblastic/osteosarcomatous differentiation and aneurysmal bone cyst-like features. Based on the clinical presentation, the morphology, and the supportive immunohistochemical and molecular findings (MDM2 overexpression and amplification of the MDM2 gene, respectively), a diagnosis of a dedifferentiated liposarcoma with heterologous osteosarcomatous differentiation and an aneurysmal bone cyst-like morphology was made...
February 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28188486/validation-of-a-method-for-retroperitoneal-tumor-segmentation
#7
Cristina Suárez-Mejías, José A Pérez-Carrasco, Carmen Serrano, José L López-Guerra, Tomás Gómez-Cía, Carlos L Parra-Calderón, Begoña Acha
PURPOSE: In 2005, an application for surgical planning called AYRA[Formula: see text] was designed and validated by different surgeons and engineers at the Virgen del Rocío University Hospital, Seville (Spain). However, the segmentation methods included in AYRA and in other surgical planning applications are not able to segment accurately tumors that appear in soft tissue. The aims of this paper are to offer an exhaustive validation of an accurate semiautomatic segmentation tool to delimitate retroperitoneal tumors from CT images and to aid physicians in planning both radiotherapy doses and surgery...
February 10, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28153774/patterns-of-care-and-survival-outcomes-for-adolescent-and-young-adult-patients-with-testicular-seminoma-in-the-united-states-a-national-cancer-database-analysis
#8
William Stokes, Arya Amini, Paul D Maroni, Elizabeth R Kessler, Claire Stokes, Carrye R Cost, Brian S Greffe, Timothy P Garrington, Arthur K Liu, Nicholas G Cost
INTRODUCTION: Testicular germ cell tumors (GCTs) are the most common solid tumor among adolescent and young adult (AYA) males. AYA patients with GCTs most typically have non-seminoma compared with seminoma, and accordingly there are fewer data reported on the AYA experience with testicular seminoma. OBJECTIVE: To evaluate national trends in postoperative treatment and overall survival (OS) outcomes in testicular seminoma by age group, specifically comparing AYAs with older adults...
January 17, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28152173/post-relapse-outcomes-after-primary-extended-resection-of-retroperitoneal-sarcoma-a-report-from-the-trans-atlantic-rps-working-group
#9
Andrea J MacNeill, Rosalba Miceli, Dirk C Strauss, Sylvie Bonvalot, Peter Hohenberger, Frits Van Coevorden, Piotr Rutkowski, Dario Callegaro, Andrew J Hayes, Charles Honoré, Mark Fairweather, Amanda Cannell, Jens Jakob, Rick L Haas, Milena Szacht, Marco Fiore, Paolo G Casali, Raphael E Pollock, Chandrajit P Raut, Alessandro Gronchi, Carol J Swallow
BACKGROUND: Despite a radical surgical approach to primary retroperitoneal sarcoma (RPS), many patients experience locoregional and/or distant recurrence. The objective of this study was to analyze post-relapse outcomes for patients with RPS who had initially undergone surgical resection of their primary tumor at a specialist center. METHODS: All consecutive patients who underwent macroscopically complete resection for primary RPS at 8 high volume centers from January 2002 to December 2011 were identified, and those who developed local recurrence (LR) only, distant metastasis (DM) only, or synchronous local recurrence and distant metastasis (LR+DM) during the follow-up period were included...
February 2, 2017: Cancer
https://www.readbyqxmd.com/read/28151756/recent-developments-in-the-management-of-germ-cell-tumors
#10
Pavlos Msaouel, Mehmet A Bilen, Miao Zhang, Matthew Campbell, Jennifer Wang, Shi-Ming Tu
PURPOSE OF REVIEW: In the present review, we summarize the recent developments in the management of germ cell tumors (GCTs). RECENT FINDINGS: Treatment-related acute and late-onset toxicity remains a key challenge in the management of GCTs. Recent data show that patients with large retroperitoneal lymph node metastases are at increased risk of venous thromboembolism and may benefit from prophylactic anticoagulation. Predictive models have been developed to identify patients with residual retroperitoneal lymph node masses who are more likely to benefit from surgical resection...
February 1, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28138989/combined-anterior-posterior-approach-with-enlarged-sciatic-foramen-to-remove-sciatic-notch-dumbbell-shaped-tumors
#11
Mi Li, Hao Li, Yu Du, Zhuo Cai, Hui Liao, Fengjing Guo, Anmin Chen, Feng Li, Caihong Yang
BACKGROUND AND OBJECTIVES: To explore a new method for resecting huge sciatic notch dumbbell-shaped tumors. METHODS: Preoperative thin-slide scanning magnetic resonance images (MRI) and computerized tomography angiography (CTA) scans were conducted. The images were processed to reconstruct a 3-dimensional (3D) model. The relationship between the tumor and surrounding anatomical structures was accurately identified. By combining an anterior-posterior approach, about 1...
January 30, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28138432/spontaneous-nephrocutaneous-fistula-rare-complication-of-xanthogranulomatous-pyelonephritis
#12
Rami Alazab, Hamzeh M Ghawanmeh, Faris Abushamma, Omar Ababneh, Anas I Al-Karasneh
Renocutaneous fistulae may occur as a result of chronic infection, especially in the setting of calculous disease.(1) Spontaneous renocutaneous is rare.(2) Usually nephrocutanous fistula developed in patient with previous renal surgery, trauma, tumors, and chronic urinary tract infection with abscess formation. We report a case of spontaneous nephrocutaneous fistula. A 37-year-old women previously well presented to ER department with purulent discharge and a palpable mass on the left lumbar area. CT scan with IV contrast fistulous tract seen within the subcutaneous plane in Left lumbar region tracking towards retroperitoneal space, and in continuity with of left kidney...
February 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28133348/-a-case-of-retroperitoneal-liposarcoma
#13
Masahiro Iwama, Akihiko Murata, Shinsuke Nishikawa, Kenichi Takahashi, Takayuki Morita
A 52-year-old man visited a local hospital complaining of abdominal distension. Enhanced computed tomography scan revealed a giant retroperitoneal tumor surrounding the left internal iliac artery and left kidney. We performed en bloc tumor resection with left internal iliac artery resection. The tumor was 35 cm in size and weighed 6,860 g. The histological diagnosis was a dedifferentiated liposarcoma. After surgery, the patient experienced left lower limb paralysis. Clinical examination and neurological findings suggested a lumbosacral problem...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133258/-a-rare-case-of-retroperitoneal-metastasis-from-ascending-colon-cancer-that-required-multimodal-treatment
#14
Marie Hanaoka, Shinichi Yamauchi, Akifumi Kikuchi, Michiyo Tokura, Megumi Ishiguro, Toshiaki Ishikawa, Masamichi Yasuno, Hiroyuki Uetake
A patient in his 70's underwent a right hemi-colectomy due to an ascending colon cancer in a previous hospital. The tumor had widely infiltrated the retroperitoneal space(pT3, pN0[0/12], pPM0, pDM0, pRM1, Stage II ). He was referred to our institute 1 month after primary surgery to receive chemotherapy for his residual tumor. Abdominal computed tomography (CT)showed a 24mm tumor in his retroperitoneal space before chemotherapy. After 4 cycles of mFOLFOX6 and panitumumab, the tumor partially responded, and after 7 cycles, he achieved a complete response(CR)...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28129655/a-novel-long-noncoding-rna-pilrls-promote-proliferation-through-tcl1a-by-activing-mdm2-in-retroperitoneal-liposarcoma
#15
Yebo Shao, Yong Zhang, Yingyong Hou, Hanxing Tong, Rongyuan Zhuang, Zhengbiao Ji, Binliang Wang, Yuhong Zhou, Weiqi Lu
It is becoming evident that lncRNAs may be an important class of pervasive genes involved in carcinogenesis and metastasis. However, the biological and molecular mechanisms of lncRNAs in retroperitoneal liposarcoma have never been reported. In our study, we found a novel lncRNA PILRLS (Proliferation Interacting LncRNA in Retroperitoneal Liposarcoma), which as an oncogene significantly overexpressed in retroperitoneal liposarcoma. Functions of PILRLS on tumor progression both in vitro and in vivo have verified in this study which PILRLS knockdown significantly inhibited cell proliferation and colony formation...
January 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28127762/improved-local-control-with-an-aggressive-strategy-of-preoperative-with-or-without-intraoperative-radiation-therapy-combined-with-radical-surgical-resection-for-retroperitoneal-sarcoma
#16
Melissa A Hull, George Molina, Andrzej Niemierko, Alex B Haynes, Alex Jacobson, Karen De Amorim Bernstein, Yen-Lin Chen, Thomas F DeLaney, John T Mullen
BACKGROUND AND OBJECTIVES: We sought to examine our outcomes with advanced preoperative and intraoperative radiation therapy (XRT) combined with aggressive en bloc surgical resection of retroperitoneal sarcoma (RPS) as a strategy to minimize the risk of local recurrence (LR). METHODS: From 2003 to 2013, 46 patients with RPS received preoperative XRT followed by radical en bloc surgical resection, with or without intraoperative electron radiation therapy (IOERT)...
January 27, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28127183/current-concepts-in-management-of-stage-i-nsgct
#17
REVIEW
Puneet Ahluwalia, Gagan Gautam
While about 50% of non- seminomatous germ cell tumors of the testes present as clinical stage I (CSI), further management of these patients continues to be mired in controversy. Active surveillance is a frontline option for low- risk CS I patients and according to some, even the high- risk ones with high embryonal carcinoma (ECA) component and vascular invasion (VI). However, it carries the disadvantage of long- term surveillance, the need for prolonged chemotherapy in case of recurrence and the possibility of secondary malignancies due to radiation exposure from frequent CT scans...
March 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28126357/hepatoblastoma
#18
Divya Sharma, Girish Subbarao, Romil Saxena
Hepatoblastoma is the most common primary malignant hepatic tumor of infancy and childhood, occurring predominantly in the first two years of life. The management of hepatoblastoma has changed markedly over the last 3 decades; neoadjuvant chemotherapy is now standard, particularly in unresectable tumors resulting in considerable preoperative tumor shrinkage and sometimes near total ablation of the tumor. A 20 month old infant was incidentally found to have a 7.6cm right sided retroperitoneal tumor on routine screening ultrasonography for left ureteral stenosis...
December 23, 2016: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28124545/robot-assisted-laparoscopic-retroperitoneal-lymph-node-dissection-in-testicular-tumor
#19
Fabio C M Torricelli, Denis Jardim, Giuliano B Guglielmetti, Vipul Patel, Rafael F Coelho
INTRODUCTION AND OBJECTIVE: Retroperitoneal lymph node dissection (RPLND) is indicated for patients with non-seminomatous germ cell tumor (NSGCT) with residual disease after chemotherapy. Although the gold standard approach is still the open surgery, few cases of robot-assisted laparoscopic RPLND have been described. Herein, we aim to present the surgical technique for robot-assisted laparoscopic RPLND. PATIENT AND METHOD: A 30 year-old asymptomatic man presented with left testicular swelling for 2 months...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28119867/pneumoretroperitoneum-pneumomediastinum-subcutaneous-emphysema-after-a-rectal-endoscopic-mucosal-resection
#20
Hee Cheul Jung, Hyun Jin Kim, Sung Bok Ji, Jun Hyeong Cho, Ji Hye Kwak, Chang Min Lee, Wan Soo Kim, Jin Ju Kim, Jae Min Lee, Sang Su Lee
An endoscopic mucosal resection (EMR) is an effective and safe therapeutic technique for treating a patient with a laterally-spreading tumor (LST). Colonoscopic-procedure-related complications are noted to be about 2.8% worldwide, and a perforation is the most common. Most colon perforations cause pneumoperitoneum. However, a perforation within the retroperitoneal portion of the colon (rectum and some of sigmoid colon) may cause an extraperitoneal perforation, and the leaking free air may induce pneumoretroperitoneum, pneumomediastinum, and subcutaneous emphysema, depending on the amount of discharged air...
December 2016: Annals of Coloproctology
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