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Pseudomyxoma peritonei. A localized, benign variant of appendiceal origin
Abstract:
A case of a huge, self-contained cyst of pseudomyxoma peritonei arising from the rupture of a benign cystadenoma of the appendix is reported. Curative surgical removal involved both small bowel and right colon resection. The pathologic spectrum of the appendiceal mucoceles, from mucosal hyperplasia to benign cystadenoma and malignant cystadenocarcinoma, is presented. The variants of pseudomyxoma peritonei (benign-malignant, localized-diffuse) are discussed and correlated with the appendiceal lesions. Clinicopathologic relationships and treatment options also are covered.
Insights
A ruptured appendiceal cystadenoma caused a large pseudomyxoma peritonei, successfully treated with surgery. This case highlights the spectrum of appendiceal mucoceles and pseudomyxoma peritonei variants.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Pathology
Background:
- Pseudomyxoma peritonei (PMP) is a rare condition characterized by mucinous ascites.
- Appendiceal mucinous neoplasms are the most common source of PMP.
Observation:
- A case of massive, contained PMP originating from a ruptured appendiceal benign cystadenoma is presented.
- Surgical management included small bowel and right colon resection.
Findings:
- The study details the pathological spectrum of appendiceal mucoceles, ranging from hyperplasia to cystadenocarcinoma.
- Variants of PMP (benign/malignant, localized/diffuse) are correlated with appendiceal lesions.
Implications:
- Understanding the clinicopathologic spectrum is crucial for effective treatment of PMP.
- This case emphasizes the importance of complete surgical resection for curative intent.