Case Report
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. May 7, 2015; 21(17): 5427-5431
Published online May 7, 2015. doi: 10.3748/wjg.v21.i17.5427
Primary retroperitoneal mucinous cystadenoma: A case report
Srbislav Knezevic, Igor Ignjatovic, Snezana Lukic, Slavko Matic, Vladimir Dugalic, Djordje Knezevic, Marjan Micev, Sanja Dragasevic
Srbislav Knezevic, Igor Ignjatovic, Slavko Matic, Vladimir Dugalic, Djordje Knezevic, Clinic for Digestive Surgery-First Surgical Clinic, Clinical Center of Serbia, University of Belgrade, 11000 Belgrade, Serbia
Snezana Lukic, Sanja Dragasevic, Clinic for Gastroenterology and Hepatology, Clinical Center of Serbia, University of Belgrade, 11000 Belgrade, Serbia
Marjan Micev, Department of Pathology, Clinic for Digestive Surgery-First Surgical Clinic, Clinical Center of Serbia, University of Belgrade, 11000 Belgrade, Serbia
Author contributions: Knezevic S and Ignjatovic I operated on the patient; Matic S and Dugalic V designed and performed the research; Knezevic D and Dragasevic S analyzed the literature data; Micev M performed the histopathologic analysis; Ignjatovic I and Lukic S wrote the paper.
Ethics approval: The study was reviewed and approved by the Clinical Center of Serbia Institutional Review Board.
Informed consent: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest: The authors have no potential conflict of interests.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Igor Ignjatovic, MD, Clinic for Digestive Surgery-First Surgical Clinic, Clinical Center of Serbia, University of Belgrade, Koste Todorovica 6, 11000 Belgrade, Serbia. scubaextreme1111@gmail.com
Telephone: +381-11-2447734 Fax: +381-11-3983675
Received: October 16, 2014
Peer-review started: October 18, 2014
First decision: November 14, 2014
Revised: December 1, 2014
Accepted: January 16, 2015
Article in press: January 16, 2015
Published online: May 7, 2015
Processing time: 209 Days and 7.3 Hours
Abstract

Primary retroperitoneal mucinous cystic tumors are extremely rare. These tumors can be classified as a primary retroperitoneal mucinous cystadenoma with or without borderline malignancy or primary retroperitoneal mucinous cystadenocarcinoma. The most common of these is primary retroperitoneal mucinous cystadenoma, which almost always occurs in female patients; only ten cases have been reported in males. The most common clinical findings for this tumor type include nonspecific abdominal pain and a palpable abdominal mass. A definitive diagnosis is usually obtained from histopathology after surgical excision. Here, we report the case of a 60-year-old female patient who complained of abdominal pain that had been present for 3 mo and presented with a palpable abdominal mass. Multidetector computed tomography scanning revealed a large, unilocular cystic mass in the left retroperitoneal space. Surgical intervention was performed and the tumor was completely removed. Histopathologic examination confirmed that the tumor was a primary retroperitoneal mucinous cystadenoma. Two years after surgery, the patient remains disease free.

Keywords: Cystic tumor; Differential diagnosis; Histopathology; Mucinous cystadenoma; Retroperitoneum

Core tip: Primary retroperitoneal mucinous cystadenomas are very rare tumors for which the biologic behavior and histogenesis remain speculative. No effective diagnostic measures have been established for an accurate preoperative diagnosis of these tumors. Symptoms of these retroperitoneal masses are caused by exertion of pressure and obstructive effects on adjacent organs. This report describes a case of a large, primary retroperitoneal mucinous cystadenoma in a female patient, which was visualized on multidetector computed tomography exam and completely enucleated at laparotomy.