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Retroperitoneal tumor

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https://www.readbyqxmd.com/read/28342659/urologic-oncologic-surveyrobotic-level-iii-inferior-vena-cava-tumor-thrombectomy-initial-series-gill-is-metcalfe-c-abreu-a-duddalwar-v-chopra-s-cunningham-m-thangathurai-d-ukimura-o-satkunasivam-r-hung-a-papalia-r-aron-m-desai-m-gallucci-m-j-urol-2015-oct-194
#1
Max Meng
PURPOSE: Level III inferior vena cava tumor thrombectomy for renal cancer is one of the most challenging open urologic surgeries. We present the initial series of completely intracorporeal robotic level III inferior vena cava tumor thrombectomy. MATERIALS AND METHODS: Nine patients underwent robotic level III inferior vena cava thrombectomy and 7 patients underwent level II thrombectomy. The entire operation (high intrahepatic inferior vena cava control, caval exclusion, tumor thrombectomy, inferior vena cava repair, radical nephrectomy, and retroperitoneal lymphadenectomy) was performed exclusively robotically...
March 22, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28337832/retroperitoneal-dedifferentiated-liposarcoma-with-huge-cystic-degeneration-a-case-report
#2
Kazuyoshi Uchihashi, Atsuji Matsuyama, Eisuke Shiba, Yoshizo Kimura, Toshiro Ogata, Kei Yabuki, Hiroshi Harada, Chisachi Kubo, Yojiro Tsuda, Mao Jotatsu, Masanori Hisaoka
Prominent cyst formation is an unusual feature of liposarcoma. We report here a case of dedifferentiated liposarcoma with huge cystic change without preoperative chemo- or radiation therapy. The lesion arose in the retroperitoneum juxtaposed to the right kidney of a 67-year-old woman. She underwent a surgical removal of the retroperitoneal cyst. The cystic tumor contained 1600 mL of old bloody fluid, and its wall was composed of edematous, inflamed or sclerosing fibrous tissue with fatty tissue containing abundant atypical stromal cells, which were immunohistochemically positive for MDM2 and CDK4, and demonstrated MDM2 gene amplification by fluorescence in situ hybridization...
March 23, 2017: Pathology International
https://www.readbyqxmd.com/read/28331170/-pathological-complete-response-of-metastatic-testicular-tumor-with-persistent-low-level-positive-human-chorionic-gonadotropin-after-chemotherapy
#3
Ryosuke Jikuya, Akihito Hashizume, Tomoyuki Tatenuma, Nobuhiko Mizuno, Kentaro Muraoka, Masaki Kawai, Akitoshi Takizawa, Takeshi Kishida
We describe a case of testicular tumor with multiple metastasis to the lung,retoroperitoneal lymph node, and brain. After chemotherapy the retroperitoneal lymph node and brain metastasis disappeared,but the multiple pulmonary metastases but not disappear,although they were reduced in size. Since the human chorionic gonadotoropin (HCG) was persistently dected at a low level,we performed a testosterone tolerance test. The HCG level became undetectable for a while,but was detected at a low level again. Then the patient underwent residual tumor removal of some of the residual pulmonary disease,which was diagnosed as tumor necrosis...
March 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28331169/-metachronous-bilateral-testicular-tumors-with-frequently-recurrent-hydrocele-a-case-report
#4
Satoshi Nitta, Shotaro Sakka, Tsuyoshi Endo, Manabu Komine, Akiko Sakata, Masakazu Tsutsumi, Koji Kawai, Hiroyuki Nishiyama
We report a case of metachronous bilateral testicular tumors combined with hydrocele. A 46-year-old male presented with frequently recurrent left hydrocele. His medical history included a stage IIA right testicular tumor,which had been treated with right high orchiectomy and retroperitoneal lymph node dissection 22 years ago. Magnetic resonance imaging (MRI) showed hydrocele and a low intensity area in the left testis,and the patient underwent left high orchiectomy. After cytological examination of the hydrocele it was categorized as class V,and after a pathological study it was diagnosed as seminoma and embryonal carcinoma...
March 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28328858/retroperitoneal-and-intrahepatic-metastasis-from-primary-clear-cell-carcinoma-of-the-liver-a-case-report-and-review-of-the-literature
#5
Junjie Xiong, Du He, Weiming Hu, Xubao Liu
BACKGROUND: Hepatocellular carcinoma (HCC) is a major cause of cancer-related mortality worldwide and the incidence is increasing as a result of growing hepatitis B and C virus infections. Primary clear cell carcinoma of the liver (PCCCL) is a rare subgroup of primary HCC, which has low metastatic potential and infrequently reported in literature. Retroperitoneal and intrahepatic metastasis of PCCCL has not been reported previously. CASE SUMMARY: Here, we present a 55-year-old male with retroperitoneal and intrahepatic metastasis of PCCCL who is managed with surgical method and transcatheter arterial chemoembolization (TACE) at our institution...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28325537/midline-extraperitoneal-approach-to-retroperitoneal-lymph-node-dissection-in-testicular-cancer-minimizing-surgical-morbidity
#6
Sumeet Syan-Bhanvadia, Soroush T Bazargani, Thomas G Clifford, Jie Cai, Gus Miranda, Siamak Daneshmand
BACKGROUND: Retroperitoneal lymph node dissection (RPLND) is an important component of the management of testicular germ cell tumor (GCT) but carries significant surgical morbidity. OBJECTIVE: To describe our experience with a midline extraperitoneal (EP) approach to RPLND for seminomatous and nonseminomatous GCT. DESIGN, SETTING, AND PARTICIPANTS: From 2010 to 2015, 122 consecutive patients underwent RPLND from a prospective database. Patients requiring aortic resection or retrocrural dissection or with intraperitoneal disease were excluded...
March 18, 2017: European Urology
https://www.readbyqxmd.com/read/28325364/retroperitoneal-lymphangioleiomyoma-with-lymph-node-involvement-a-pathologic-radiologic-correlation-of-a-rare-form-of-myomelanocytic-tumor
#7
Amrou Abdelkader, Cesar A Lam, Kaushik S Shahir, Kathleen Christians, Saul M Suster
Lymphangioleiomyomatosis (LAM) is a rare and slowly progressive disorder that usually arises in the lung, affects exclusively women in their childbearing years, and typically presents with progressive dyspnea on exertion and pneumothorax. Infrequently, extra-pulmonary LAM can occur in the retroperitoneum, uterine wall, mediastinum and intraperitoneal lymph nodes. Histologically, LAM is characterized by a proliferation of perivascular epithelioid cells (PEC) that express markers for both melanocytes and smooth muscle cells...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28321068/conservative-treatment-for-idiopathic-adrenal-hemorrhage-tracked-by-a-long-term-series-of-ct-images
#8
Tsutomu Yamada, Fumiko Yamakawa, Xia Cao, Ayako Fukui, Machiko Tajitsu, Junko Nagai, Yuko Yambe, Takashi Murase, Masashi Saito, Tomoyuki Tsuzuki
A 55-year-old man was transported to our hospital after a sudden onset of left lower abdominal pain while driving. Computed tomography (CT) of the abdominal region revealed an extensive iso-intense signal region that had a maximum area of 14×15 cm, which we treated conservatively. A series of follow-up CT images showed the gradual decrease of the left peritoneal mass, while continuity with the left adrenal gland became apparent. He was diagnosed with idiopathic adrenal hemorrhage. Adrenal hemorrhage presenting with huge retroperitoneal tumors is rare, and most cases are treated surgically...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28319177/radiological-features-of-primitive-neuroectodermal-tumors-in-intra-abdominal-and-retroperitoneal-regions-a-series-of-18-cases
#9
Xiaoping Yi, Wenguang Liu, Youming Zhang, Desheng Xiao, Hongling Yin, Xueying Long, Li Li, Hongyan Zai, Minfeng Chen, Wenzheng Li, Lunquan Sun
OBJECTIVES: To characterize the imaging and clinicopathological features of primitive neuroectodermal tumors (PNETs) arising in intra-abdominal and retroperitoneal regions. METHODS: Eighteen patients with histopathologically proven intra-abdominal and retroperitoneal PNET were enrolled; computed tomography was performed for all cases, and magnetic resonance imaging was performed for a single case. Typical computed tomography and magnetic resonance imaging findings, including morphology, texture and enhancement features, as well as clinicopathological characteristics and prognosis data were retrospectively analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28315919/a-rare-adult-renal-neuroblastoma-better-imaged-by-18-f-fdg-than-by-68-ga-dotanoc-in-the-pet-ct-scan
#10
Tarun Kumar Jain, Sharwan Kumar Singh, Ashwani Sood, Abhiram Gj Ashwathanarayama, Rajender Kumar Basher, Jaya Shukla, Bhagwant Rai Mittal
Primary renal neuroblastoma is an uncommon tumor in children and extremely rare in adults. We present a case of a middle aged female having a large retroperitoneal mass involving the right kidney with features of neuroblastoma on pre-operative histopathology. Whole-body fluorine-18-fluoro-deoxyglucose positron emission tomography ((18)F-FDG PET/CT) and (68)Ga-dotanoc PET/CT scans performed for staging and therapeutic potential revealed a tracer avid mass replacing the right kidney and also pelvic lymph nodes...
March 20, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28306215/primary-mediastinal-and-retroperitoneal-malignant-germ-cell-tumors-in-children-and-adolescents-results-of-the-tgm95-trial-a-study-of-the-french-society-of-pediatric-oncology-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-des-cancers-de-l-enfant
#11
Hélène Sudour-Bonnange, Cécile Faure-Conter, Hélène Martelli, Frederic Hameury, Brice Fresneau, Daniel Orbach, Cécile Vérité
PURPOSE: To examine the clinical presentation, treatment and results in children and adolescents with primary mediastinal (PM) and retroperitoneal (RP) germ cell tumors (GCTs). METHODS: The TGM95 trial for malignant GCTs was conducted in France between 1995 and 2005 to evaluate a strategy adapted to prognostic factors with cisplatin-based chemotherapy and surgical management. We reviewed patients with TGCTs at PM and RP sites. RESULTS: Among 239 patients, there were 16 patients with PM and 5 with RP tumors, which represent 9% of all patients, highlighting the rarity of these extragonadal locations...
March 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28304214/retroperitoneal-laparoscopic-partial-nephrectomy-for-tumors-larger-than-7%C3%A2-cm-in-renal-cell-carcinoma-initial-experience-of-single-institution
#12
Erlin Song, Xin Ma, Ruihua An, Peng Zhang, Xu Zhang, Baojun Wang, Taoping Shi, Shengkun Sun
BACKGROUND: To report our initial experience dealing with retroperitoneal laparoscopic partial nephrectomy (LPN) for tumors larger than 7 cm in renal cell carcinoma (RCC). MATERIALS AND METHODS: A total of 15 patients with malignant tumors larger than 7 cm underwent retroperitoneal LPN at our institution. Patient baseline demographics, perioperative outcomes, pathological characteristics, and estimated glomerular filtration rate (eGFR) were analyzed retrospectively in our collected database...
March 17, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28296778/malignant-solitary-fibrous-tumor-in-retroperitoneum-a-case-report-and-literature-review
#13
Yihong Zhou, Xi Chu, Ye Yi, Liang Tong, Yingbo Dai
RATIONALE: Solitary fibrous tumor (SFT) is a rare mesenchymal tumor occurs in various sites. Malignant SFT in retroperitoneum is extremely rare. PATIENT CONCERNS: We report a case of malignant retroperitoneal SFT in a 59-year-old man presented with right flank pain for 1 month. DIAGNOSES, INTERVENTIONS AND OUTCOMES: A laparotomy and resection of the tumor were performed, the histopathologic and immunohistochemical findings were consistent with malignant retroperitoneal SFT...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28296772/metastasis-to-the-appendix-from-adenocarcinoma-of-the-ascending-colon-a-case-report
#14
Yingjie Li, Mingshan Li, Xiaoxia Li, Haiquan Sang
RATIONALE: Metastasis of cancer cells involves shedding from the primary tumor through various means to distant tissues and organs with continued growth and formation of new metastatic tumors of the same cancer type as the original tumor. The common sites for colon cancer metastases include the pelvis, retroperitoneal lymph nodes, liver, and lungs; Colon cancer metastases to the appendix are rare, as reported in this case. PATIENT CONCERNS AND DIAGNOSES: A 45-year-old man was admitted to our department with a 24-hour history of abdominal distension and incomplete obstruction...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28296679/primary-cystic-trophoblastic-tumor-of-the-testis-a-study-of-14-cases
#15
Dibson D Gondim, Thomas M Ulbright, Liang Cheng, Muhammad T Idrees
Cystic trophoblastic tumor (CTT) has been described in postchemotherapy retroperitoneal lymph node dissections of patients with testicular germ cell tumors. Prognostically, this lesion is similar to teratoma and no further treatment is required after surgery in the absence of other components. CTT has not, however, been reported in the testis. We identified 14 CTTs in the treated (4) and untreated (9; no information for 1 patient) testes of patients 15 to 43 years old (median, 25) with mixed germ cell tumors...
March 14, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28296054/modified-retroperitoneal-lymph-node-dissection-for-postchemotherapy-residual-tumor-a-long-term-update
#16
Jane S Cho, Hristos Z Kaimakliotis, K Clint Cary, Timothy A Masterson, Stephen Beck, Richard Foster
OBJECTIVES: To update previously reported outcomes of modified template postchemotherapy retroperitoneal lymph node dissection (PC-RPLND) in appropriately selected patients with metastatic non-seminomatous germ cell tumor (NSGCT). Our previous report was criticized for short follow-up. Herein, we provide a long-term update on this cohort. MATERIALS AND METHODS: One hundred patients with normal serum markers after cisplatin-based chemotherapy and residual retroperitoneal tumor underwent modified PC-RPLND between 1991 and 2004...
March 13, 2017: BJU International
https://www.readbyqxmd.com/read/28289669/laparoscopic-resection-of-retroperitoneal-benign-neurilemmoma
#17
Jung Hwan Ji, Joon Seong Park, Chang Moo Kang, Dong Sup Yoon, Woo Jung Lee
PURPOSE: The aim of this study was to verify that laparoscopic resection for treating retroperitoneal benign neurilemmoma (NL) is expected to be favorable for complete resection of tumor with technical feasibility and safety. METHODS: We retrospectively analyzed 47 operations for retroperitoneal neurogenic tumor at Yonsei University College of Medicine, Severance Hospital and Gangnam Severance Hospital between January 2005 and September 2015. After excluding 21 patients, the remaining 26 were divided into 2 groups: those who underwent open surgery (OS) and those who underwent laparoscopic surgery (LS)...
March 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28288036/gist-manifesting-as-a-retroperitoneal-tumor-clinicopathologic-immunohistochemical-and-molecular-genetic-study-of-112-cases
#18
Markku Miettinen, Anna Felisiak-Golabek, Zengfeng Wang, Shingo Inaguma, Jerzy Lasota
Most gastrointestinal stromal tumors (GISTs) occur in the tubular gastrointestinal (GI) tract, but some present apparently outside the GI tract. In this study, we analyzed 112 GISTs located in the retroperitoneum. These tumors occurred in 55 women and 57 men with a median age of 65 years (range: 21 to 89 y). On the basis of clinically or histologically detected connections to GI tract, 15 tumors were considered likely of gastric, 9 duodenal, and 13 of small intestinal origin. The remaining cases were categorized by location as peripancreatic (n=25), pelvic (n=11), mesenteric (n=4), and of unspecified/miscellaneous sites (n=35)...
March 10, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28285808/-retroperitoneal-metastasis-from-testicular-tumor-mature-teratoma-with-adenocarcinomatous-transformation
#19
Marion Carmassi, Julien Vaccaro, Caroline Prost, Stéphane Garcia
A 41-year-old patient, with a medical history of embryonal carcinoma treated by orchidectomy at the age of 27, presented with abdominal pain. Serum alphafetoprotein, β-HCG and CEA levels were normal. MRI showed a cystic retroperitoneal lesion with septation, measuring 20cm. He underwent a surgical resection. Histology revealed an adenocarcinoma arising on a mature multitissular teratoma.
March 9, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28275656/retroperitoneal-inflammatory-myofibroblastic-tumor-a-case-report
#20
Oliveira Carlos, Costa Rui, Estêvão Amélia, Caseiro-Alves Filipe
Inflammatory myofibroblastic tumors (IMT) were previously included in the "inflammatory pseudotumors" family, but have emerged as a distinct entity recently. The management of IMT may be challenging due to its intermediate malignant potential. We present a case of a young patient with an asymptomatic retroperitoneal mass with some imaging findings that could point to the IMT diagnosis pre-operatively. After two failed attempts to fully characterize the lesion by percutaneous and surgical biopsy, surgical resection was conducted and the final diagnosis was achieved...
2017: European Journal of Radiology Open
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