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Updated: Jan 28, 2026

Intra-Omental Islet Transplantation Using h-Omental Matrix Islet filliNG hOMING
Published on: March 14, 2019
An omental mass. Any idea?
G Mascianà1, G T Capolupo1, F Carannante1
1Department of Geriatric Surgery, University Campus Bio-Medico, Via Alvaro del Portillo 21, 00128 Rome, Italy.
Pseudomyxoma extraperitonei (PE) is a rare condition, often caused by appendiceal mucocele rupture. This case highlights the importance of tailored treatment and diligent follow-up for extraperitoneal PE.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Pathology
Background:
- Pseudomyxoma extraperitonei (PE) is an uncommon clinical finding.
- The most frequent etiology involves the rupture of an appendiceal mucocele into the retroperitoneum.
Purpose of the Study:
- To report a case of extraperitoneal pseudomyxoma.
- To review the literature on pseudomyxoma extraperitonei.
Main Methods:
- A case of a 52-year-old female patient presenting with an abdominal mass and pain was analyzed.
- Surgical resection of an extraperitoneal encapsulated mass was performed.
- Histopathological examination confirmed a low-grade mucinous pseudomyxoma.
Main Results:
- Histopathology confirmed a mucinous pseudomyxoma with low-grade differentiation.
- The patient underwent resection of an extraperitoneal encapsulated mass.
Conclusions:
- Treatment strategies for pseudomyxoma vary significantly based on intraperitoneal versus extraperitoneal location.
- Regular follow-up including physical examination, CT scans, and serum markers is crucial due to the risk of recurrence.
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