Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/97491
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Type: Journal article
Title: Large retroperitoneal isolated fibrous cyst in absence of preceding trauma or acute pancreatitis
Author: Ahn, J.
Chandrasegaram, M.
Alsaleh, K.
Woodham, B.
Teo, A.
Das, A.
Merrett, N.
Apostolou, C.
Citation: BMC Surgery, 2015; 15(1):25-1-25-4
Publisher: BioMed Central
Issue Date: 2015
ISSN: 1471-2482
1471-2482
Statement of
Responsibility: 
Julie Ahn, Manju D Chandrasegaram, Khaled Alsaleh, Benjamin L Woodham, Adrian Teo, Amithaba Das, Neil D Merrett, and Christos Apostolou
Abstract: BACKGROUND: Isolated retroperitoneal cystic masses are uncommon with an estimated incidence of 1/5750 to 1/250,000. The majority present with size related symptoms, complications, or a mass. Approximately a third of patients are asymptomatic and are diagnosed incidentally. Aetiologies of retroperitoneal cystic masses (RPC) include mesenteric, omental, splenic and enteric duplication cysts. Neoplastic RPCs can be divided into epithelial (mucinous or serous cystadenoma), mesothelial (mesothelioma), germ cell (cystic teratoma) and cystic changes in a solid neoplasm (paraganglioma, neurilemmoma, sarcoma). CASE PRESENTATION: A 53 year-old man presented to us with abdominal pain related to a large mass in his left upper quadrant with associated anorexia and weight loss. He gave no history of previous trauma and denied having symptoms or a history of pancreatitis. He said he had felt this mass increasing in size over the course of several years. Clinical examination of his abdomen revealed a large firm left sided mass extending to his left upper quadrant. Imaging with computed tomography (CT) and magnetic resonance imaging cholangio-pancreatogram (MRCP) revealed a 13.7 cm × 12.2 cm × 10.9 cm cystic lesion in the retroperitoneum which was separate from the kidney, pancreas, spleen and bowel. At laparotomy, this mass was easily dissected from the surrounding viscera and was excised completely intact. Histopathological assessment found the mass to be a large fibrous pseudocyst with no epithelial lining. CONCLUSION: We present a rare case of an isolated large retroperitoneal fibrous pseudocyst unrelated to previous pancreatitis which was successfully managed with surgery.
Keywords: Retroperitoneal cyst; Fibrous cyst; Retroperitoneal mass; Pseudocyst; Cystic mass
Rights: © 2015 Ahn et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
RMID: 0030034987
DOI: 10.1186/s12893-015-0016-2
Appears in Collections:Medicine publications

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