Background: Pseudomyxoma peritonei is a rare condition consisting of mucinous ascites, most commonly arising from mucinous tumors of the appendix and occasionally from the ovary. Very rarely mucinous implants arise in the retroperitoneum without any intra-peritoneal involvement. This has been termed as pseudomyxoma extraperitonei.

Case Presentation: We report a case of a 57 year old man who developed pseudomyxoma extraperitonei, 35 years after undergoing an appendicectomy for a perforated appendix.

Conclusions: Pseudomyxoma extraperitonei has been previously reported, however we report the longest incubation period of 35 years for this condition.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC436065PMC
http://dx.doi.org/10.1186/1477-7819-2-19DOI Listing

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Article Synopsis
  • Appendiceal cancers, particularly mucinous cystadenocarcinoma, are rare and can cause serious complications like pseudomyxoma peritonei, leading to abdominal fluid accumulation called "jelly belly."
  • A case of a young man with a persistent psoas abscess revealed mucinous adenocarcinoma with pseudomyxoma retroperitonei, emphasizing the need to consider malignancy in atypical abscesses.
  • Early and accurate diagnosis is critical because these types of tumors can be misdiagnosed as common issues like abscesses, highlighting the importance of imaging and colonoscopy in identifying them.
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Introduction: Iliacus and psoas muscles are located in an extraperitoneal location forming the iliopsoas compartment. Iliopsoas abscess is a myositis involving this compartment. Pseudomyxoma peritonei is characterized by an abundant extracellular collection of mucin in the peritoneal cavity.

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An omental mass. Any idea?

Int J Surg Case Rep

February 2019

Department of Geriatric Surgery, University Campus Bio-Medico, Via Alvaro del Portillo 21, 00128 Rome, Italy.

Introduction: Pseudomyxoma extraperitonei (PE) is a rare finding. The most common cause is the rupture of a mucocele of the appendix into the retroperitoneum.

Presentation Of Case: Here we report a case of a 52 years old female patient with a mass in the right abdomen and vague lower abdominal pain underwent resection of a extraperitoneal encapsulated mass.

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Pseudomyxoma peritonei, a rare condition consisting of intraperitoneal mucinous tumors and ascites, most commonly arises from mucinous tumors of the appendix. Very rarely, mucinous deposits arise in the retroperitoneum without intraperitoneal involvement. This has been termed pseudomyxoma extraperitonei.

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Pseudomyxoma extraperitonei is rare lesion resulting from the rupture of an appendiceal mucocele into the extraperitoneal tissues. We report a case of an 80-year-old woman with a medical history for a left hemicolectomy and a laparoscopic cholecystectomy 11 and 6 years, respectively, referred to our hospital for abdominal pain of increasing severity localised to the right hemiabdomen. The abdominal examination revealed a mobile mass a multidetector CT was performed; the patient was taken to surgery which was performed with no complications.

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