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Retroperitoneal tumor

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https://www.readbyqxmd.com/read/29454352/lower-pole-approach-in-retroperitoneal-laparoscopic-radical-nephrectomy-a-new-approach-for-the-management-of-renal-vascular-pedicle
#1
Bo Yuan, Yuantao Wang, Jialin Gao, Yongrui Zhang, Yaowen Fu, Wei An
BACKGROUND: The objective of this study was to examine the effectiveness and safety of lower pole (LP) approach in retroperitoneal laparoscopic radical nephrectomy (LRN). METHODS: One hundred thirty-two renal cancer patients were scheduled for selective retroperitoneal LRN. The surgery parameters and outcomes were compared. Out of 132 patients, 78 (59.1%) patients underwent LRN via LP approach, while 54 (40.9%) patients underwent LRN via lateroposterior space (LPS) approach...
February 17, 2018: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29449525/anterior-approach-to-en-bloc-resection-in-left-sided-retroperitoneal-sarcoma-with-adjacent-organ-involvement-a-study-of-25-patients-in-a-single-center
#2
Zhen Wang, Jian-Hui Wu, Ang Lv, Cheng-Peng Li, Xiu-Yun Tian, Chun-Yi Hao
BACKGROUND There is no standard surgical approach for the management of retroperitoneal sarcoma. The aim of this clinical study was to describe the experience of an anterior approach to en bloc resection in left-sided retroperitoneal sarcoma with adjacent organ involvement. MATERIAL AND METHODS This retrospective clinical study included 25 patients who were diagnosed with left-sided retroperitoneal sarcoma and underwent tumor resection at a single center between May 2012 and July 2017. All patients had tumors that were adjacent to the left colon, pancreas, left kidney, left adrenal gland, and psoas major; some of the tumors were adjacent to the diaphragm, stomach, and small intestine...
February 16, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29448861/self-retaining-barbed-suture-reduces-warm-ischemia-time-during-laparoscopic-partial-nephrectomy
#3
Mingshuai Wang, Xingyu Mu, Feiya Yang, Yinong Niu, Nianzeng Xing
OBJECTIVE: To evaluate the efficacy and safety of self-retaining barbed suture in renorrhaphy during laparoscopic partial nephrectomy by comparing surgical outcomes in a prospective randomized manner. MATERIAL AND METHODS: From July 2014 to July 2015, a total of 60 patients with T1 renal tumor were randomized into two equal groups: self-retaining barbed suture (SRBS) and conventional absorbable polyglactin suture (non-SRBS group). All patients were treated by retroperitoneal laparoscopic partial nephrectomy...
February 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/29448302/retroperitoneal-laparoscopic-adrenalectomy-with-transient-renal-artery-occlusion-for-large-adrenal-tumors-%C3%A2-8-cm
#4
Binbin Gong, Ming Ma, Wenjie Xie, Xiaorong Yang, Ting Sun
OBJECTIVES: To analyze our experience in retroperitoneal laparoscopic adrenalectomy (RLA) with transient renal artery occlusion for large adrenal tumors (≥8 cm) and to explore the safety and feasibility of this surgical procedure. METHODS: A retrospective cohort study was conducted with a surgical data review of 18 patients with large adrenal tumors who underwent RLA with transient renal artery occlusion in our hospital. RESULTS: Eighteen patients were treated by RLA with transient occlusion of the renal artery, and none were converted to open adrenalectomy...
February 15, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29445486/aneurysm-of-the-inferior-vena-cava-with-thrombosis
#5
Masashi Inoue, Takeshi Sudo, Megumi Yamaguchi, Shingo Seo, Tatsuya Miyamoto, Toshihiro Misumi, Wataru Shimizu, Toshimitsu Irei, Takahisa Suzuki, Takashi Onoe, Yosuke Shimizu, Takao Hinoi, Hirotaka Tashiro
Inferior vena cava (IVC) aneurysms are extremely rare. Patients can be asymptomatic, have thrombosis, rupture, or pulmonary embolism. Thrombosis of the IVC aneurysm may mimic a retroperitoneal tumor. Surgical treatment of abdominal venous aneurysms with thrombosis is warranted and is necessary for the management of intraoperative bleeding and thrombosis.
February 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29442061/unusual-presentation-of-retroperitoneal-schwannoma-case-report
#6
R Latino, Daniela Bosco, M E Frattallone, A Amico, R Lanteri, A Di Cataldo
Schwannoma is a rare tumor that develops from the Schwann cells in the nerve sheath. A 42 years old woman was found incidentally to have a bulky mass in epigastric region. Abdominal ultrasonography CT and MRI have been of aid to know the position and size of the tumor. A massive capsulated retroperitoneal lesion was identified. It moved forward the hepatoduodenal ligament, inferior vena cava laterally and aorta medially. The mass is exte-riorized and detached from adhesions. There were no complications after the operation and the patient was discharged on the fourth post-operative day...
November 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/29441039/metastatic-burned-out-seminoma-causing-neurological-paraneoplastic-syndrome-not-quite-burned-out
#7
Yuval Freifeld, Payal Kapur, Ritika Chitkara, Francesca Lee, Pravin Khemani, Aditya Bagrodia
A 44-year-old man presented with cerebellar ataxia and limbic encephalitis and was ultimately diagnosed with metastatic germ cell neoplasm resulting from a "burned out" primary testicular tumor. The patient had progressive ataxia, leading to a thorough investigation for infectious, autoimmune, metabolic, and malignant causes of acquired cerebellar ataxia that revealed no significant findings. Testicular sonography demonstrated a possible right testicular lesion that was not confirmed on radical inguinal orchiectomy...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29434876/a-retrospective-single-center-cohort-study-on-65-patients-with-primary-retroperitoneal-liposarcoma
#8
Yi-Xi Wu, Jun-Yan Liu, Jia-Jia Liu, Peng Yan, Bo Tang, You-Hong Cui, Yong-Liang Zhao, Yan Shi, Ying-Xue Hao, Pei-Wu Yu, Feng Qian
Primary retroperitoneal liposarcoma (PRPLS) is the most common soft tissue malignancy of the retroperitoneum. To determine the pathological features and the curative effects of surgery in patients with PRPLS, and to elucidate key prognostic factors, the present study retrospectively analyzed the clinical cases of 65 patients with PRPLS. Immunohistochemical analysis demonstrated that vimentin and Ki-67 are better indicators for PRPLS immunohistochemical diagnosis compared with S-100 protein. S-100 protein was predominantly expressed in well-differentiated PRPLS...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29432785/expression-of-mdm2-and-p16-in-angiomyolipoma
#9
Xiaoqi Lin, William B Laskin, Xinyan Lu, Yaxia Zhang
Angiomyolipoma (AML) arises primarily from the kidney, but may grow into the retroperitoneal space mimicking a primary retroperitoneal tumor. Fine needle aspiration (FNA) and core needle biopsy (CNB) of AML, particularly the fat-predominant variant, may be difficult to distinguish from retroperitoneal well-differentiated liposarcoma (WDLS) or lipoma. Commonly used immunomarkers, MDM2 and p16, have proven useful in diagnosing WDLS and dedifferentiated liposarcoma (DDLS), while HMB45 and Melan-A are melanocyte-related markers characteristically expressed in AML...
February 9, 2018: Human Pathology
https://www.readbyqxmd.com/read/29432314/retroperitoneal-angiomatoid-fibrous-histiocytoma-presenting-as-a-recurrent-spontaneous-retroperitoneal-hemorrhage-in-a-9-year-old-boy
#10
Jonathan C Slack, Carlos Sanchez-Glanville, MacGregor Steele, Andrew L Wong, Marie-Anne Bründler
Angiomatoid fibrous histiocytoma (AFH) is a rare soft tissue tumor that typically presents in children and young adults. Occurrence outside of the extremities and the head and neck region is exceedingly rare. We report the case of a 9-year-old boy who presented with recurrent retroperitoneal hemorrhage initially thought to be a manifestation of an underlying bleeding disorder. After comprehensive diagnostic work-up, including multiple negative biopsies, the patient underwent surgical resection of an extensively hemorrhagic intramuscular mass and to date remains well...
February 9, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29429159/-retroperitoneal-dedifferentiated-liposarcoma-with-rhabdomyoblastic-differentiation-a-clinicopathological-analysis
#11
L Liu, L H Wang, Y B Ren, X S Rao, S M Yang
Objective: To investigate the clinicopathological features, differential diagnosis, treatment and prognosis of dedifferentiated liposarcoma with rhabdomyoblastic differentiation. Methods: Six cases of retroperitoneal dedifferentiated liposarcoma with rhabdomyoblastic features were collected from December 2014 to August 2017 at Peking University International Hospital. The clinical manifestations, histomorphology, immunophenotype, treatment and follow-up data were analyzed, and relevant literature reviewed. Results: The six patients included two males and four females, with age range of 47 to 66 years (mean 56 years)...
February 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29426349/neurofibroma-involving-obturator-nerve-mimicking-an-adnexal-mass-a-rare-case-report-and-prisma-driven-systematic-review
#12
Wei-Ting Chao, Chia-Hao Liu, Yi-Jen Chen, Hua-Hsi Wu, Chi-Mu Chuang, Peng-Hui Wang
BACKGROUND: Pelvic masses are a common gynecologic problem, and majority of them are diagnosed as ovarian tumors finally. Sometimes, it is hard to distinguish the origin of these pelvic masses. The following case is a solitary neurofibroma arising from the right-side obturator nerve, which was impressed as a right-side ovarian tumor initially. We reported this case, and also performed a PRISMA-driven systematic review to summary the similar cases in the literature. This review includes image, molecular and pathological findings and outcome of neurofibroma...
February 9, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29410311/clinical-outcome-of-retroperitoneal-lymph-node-dissection-after-chemotherapy-in-patients-with-pure-embryonal-carcinoma-in-the-orchiectomy-specimen
#13
Catherine M Dowling, Melissa Assel, John E Musser, Joshua J Meeks, Dan Sjoberg, George Bosl, Robert Motzer, Dean Bajorin, Darren Feldman, Brett S Carver, Joel Sheinfeld
OBJECTIVE: To determine the pathologic findings and clinical outcome of patients with pure embryonal carcinoma (EC) of the testis who were diagnosed with testis cancer from January 1989 to January 2013 who underwent an orchiectomy, cisplatin-based chemotherapy and a post-chemotherapy retroperitoneal lymph node dissection (PC-RPLND). METHODS: We compared those patients with 100% EC to those with mixed non-seminomatous germ cell tumor (NSGCT) pathology who underwent a PC-RPLND...
February 1, 2018: Urology
https://www.readbyqxmd.com/read/29409496/gold-nanoparticles-improve-metabolic-profile-of-mice-fed-a-high-fat-diet
#14
Hui Chen, Jane P M Ng, Yi Tan, Kristine McGrath, David P Bishop, Brian Oliver, Yik Lung Chan, Michael B Cortie, Bruce K Milthorpe, Stella M Valenzuela
BACKGROUND: Obesity is a high risk for multiple metabolic disorders due to excessive influx of energy, glucose and lipid, often from a western based diet. Low-grade inflammation plays a key role in the progression of such metabolic disorders. The anti-inflammatory property of gold compounds has been used in treating rheumatoid arthritis in the clinic. Previously we found that pure gold nanoparticles (AuNPs, 21 nm) also possess anti-inflammatory effects on the retroperitoneal fat tissue following intraperitoneal injection, by downregulating tumor necrosis factor (TNF) α...
February 6, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29403301/early-exposure-to-distinct-sources-of-lipids-affects-differently-the-development-and-hepatic-inflammatory-profiles-of-21-day-old-rat-offspring
#15
Laís Vales Mennitti, Lila Missae Oyama, Aline Boveto Santamarina, Claudia Maria da Penha Oller do Nascimento, Luciana Pellegrini Pisani
Introduction: Maternal diet composition of fatty acids during pregnancy and lactation seems to modify the fetal programming, epigenetic pattern and offspring phenotype. Aim: Herein, we investigated the effects of maternal consumption of normal-fat diets with distinct lipid sources during pregnancy and lactation on the somatic development and proinflammatory status of 21-day-old rat offspring. Materials and Methods: On the first day of pregnancy, female Wistar rats were divided into four groups as follows: soybean oil (M-SO), lard (M-L), hydrogenated vegetable fat (M-HVF) and fish oil (M-FO)...
2018: Journal of Inflammation Research
https://www.readbyqxmd.com/read/29395417/retroperitoneal-follicular-dendritic-cell-sarcoma-in-a-young-woman-diagnosis-and-treatment-challenges
#16
Rym Bouriga, Nihed Abdessaied, Makram Hochlef, Najoua Mallat, Mohamed Mahjoub, Badereddine Sriha, Slim Ben Ahmed
INTRODUCTION: Follicular dendritic cell sarcoma (FDCS) is an uncommon tumor that usually arises in lymph nodes, especially in the cervical, mediastinal, or axillary areas, but rarely in extranodal sites. Few cases have been reported in English literature so far. The scarcity may be partially due to under-recognition of this entity. Through this case report we analyzed the difficulties of clinical and pathological diagnosis of this rare tumor with its unusual location mistaken it with gynecological cancer's iliac lymph nodes metastases...
January 6, 2018: Current Problems in Cancer
https://www.readbyqxmd.com/read/29394769/-a-case-of-curatively-resected-ascending-colon-cancer-after-long-term-chemotherapy-found-in-abdominal-trauma
#17
Naoki Aomatsu, Yasutake Uchima, Chihoko Nobori, Shigeaki Kurihara, Yoshihito Yamakoshi, En Wang, Daisuke Nagashima, Toshiki Hirakawa, Takehiko Iwauchi, Junya Morimoto, Seika Tei, Kazunori Nakazawa, Kazuhiro Takeuchi
A 46-year old man presented with lower right quadrant abdominal pain caused by abdominal trauma. Abscess drainage was performed after the diagnosis of retroperitoneal abscess in the ileocecal portion of the colon. Type 2 advanced cancer was found in the cecum and ascending colon. Surgery was performed after improvement of inflammation. Considering the difficulty of curative resection for retroperitoneal invasion, we first performed ileo-transverse colon anastomosis. After surgery, the patient received FOLFOX with panitumumab(Pmab)as neoadjuvant chemotherapy...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29394760/-recurrence-of-a-giant-retroperitoneal-leiomyosarcoma-six-years-after-the-initial-surgery
#18
Rama Adikrisna, Tetsuo Sugishita, Hirotomo Takahara, Satoru Kakuta, Yoshiki Murase, Yuichiro Watanabe, Masaru Udagawa
A 51-year-old man came to our department because of a large abdominal mass. CT, MRI, and sonography revealed a large tumor adjacent to the retroperitoneal area. A resection was performed, and histologically we confirmed the diagnosis as a leiomyosarcoma originating from the retroperitoneum. Six years after the initial surgery, the patient came to our outpatient department with a complaint of nausea. A relatively large tumor was seen on a CT scan that was causing obstruction of the duodenum. Another surgery was performed with the final diagnosis as a recurrence of the leiomyosarcoma...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29394669/-a-case-of-local-recurrence-with-negative-fdg-pet-findings-after-a-total-proctocolectomy-for-ulcerative-colitis-associated-with-colon-cancer-with-retroperitoneal-penetration
#19
Masumi Kumakura, Toshiro Ogura, Yu Muta, Tetsuya Ito, Azusa Yamamoto, Kunihiko Amano, Toru Ishiguro, Minoru Fukuchi, Erito Mochiki, Hideyuki Ishida
We report the case of a 55-year-old man who successfully underwent resection of a recurrence of ulcerative colitis(UC)- associated colon cancer located in the pancreatic body and left kidney. The patient had undergone an emergency laparotomy (total proctocolectomy with stapled ileal-pouch anal anastomosis)for the treatment of a descending colon cancer with retroperitoneal penetration associated with UC at the age of 50 years. At that time, histological examinations revealed a mucinous carcinoma that was classified as Stage II colon cancer...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29394629/-a-case-of-extrarenal-retroperitoneal-angiomyolipoma
#20
Toshifumi Saito, Yuichiro Watanabe, Takeshi Ishii, Kouji Yonekura, Takahiro Sanada, Hiroshi Kuwabara, Noriaki Nakamura, Narihide Goseki
We report a rare case of a extrarenal retroperitoneal angiomyolipoma. A 64-year-old female visited our hospital because of an abdominal mass in her lower right abdomen. Enhanced CT scan revealed a 67×52mm tumor in lower right retroperitoneal space. MRI revealed adipose component in the tumor on T1 weighted images and T2 weighted images. Our preoperative diagnosis was retroperitoneal liposarcoma, and we performed retroperitoneal tumor resection. At operation the tumor was on the fossa iliaca, which was covered with capsule...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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