Pseudomyxoma peritonei
R Harshen1, R Jyothirmayi, N Mithal
1Epsom and St Helier NHS Trust, Epsom General Hospital, Epsom, Surrey, U.K.
Abstract:
Pseudomyxoma peritonei is a rare form of mucinous ascites associated with peritoneal and omental implants. The origin is controversial, and recent immunohistochemical and molecular genetic evidence suggests the appendix to be the likely site. The condition often presents as an incidental finding at laparotomy. Ultrasonography, computed tomography and magnetic resonance imaging aid in preoperative diagnosis. Treatment remains controversial, surgery being the main stay. The role of intraperitoneal and systemic chemotherapy is poorly defined. We review the literature on the pathology, clinical features and treatment options in pseudomyxoma peritonei.
Insights
Pseudomyxoma peritonei, a rare mucinous ascites, likely originates from the appendix. Diagnosis involves imaging, but treatment, primarily surgery, remains controversial with chemotherapy
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Pseudomyxoma peritonei is a rare condition characterized by mucinous ascites and peritoneal/omental implants.
- Its exact origin is debated, but appendiceal origin is increasingly supported by evidence.
Purpose of the Study:
- To review the pathology, clinical features, and treatment options for pseudomyxoma peritonei.
- To consolidate current understanding and highlight areas of controversy in managing this rare condition.
Main Methods:
- Literature review of pathology, clinical presentation, and treatment modalities for pseudomyxoma peritonei.
- Analysis of diagnostic imaging techniques (ultrasonography, CT, MRI) and therapeutic approaches.
Main Results:
- Appendiceal origin is suggested by immunohistochemical and molecular genetic data.
- Diagnosis is often incidental during laparotomy, with imaging aiding preoperative assessment.
- Treatment primarily involves surgery, but its efficacy and the role of chemotherapy are not well-defined.
Conclusions:
- Pseudomyxoma peritonei management requires further research, particularly regarding the role of chemotherapy.
- Standardized diagnostic and treatment protocols are needed for this rare malignancy.
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