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Multilocular cysts of the peritoneum
Mayo Clinic Proceedings
|October 1, 1982
Summary
Multilocular peritoneal cysts are classified as either cystic mesotheliomas or cystic lymphangiomas based on microscopic features. These distinct types show differences in patient demographics, recurrence rates, and histologic characteristics, aiding in diagnosis.
Area of Science:
- Pathology
- Surgical Pathology
- Oncology
Background:
- Multilocular cysts of the peritoneum represent a diagnostic challenge.
- Distinguishing between neoplastic and non-neoplastic cystic lesions is crucial for patient management.
Observation:
- A retrospective review of Mayo Clinic cases from 1907-1981 identified two distinct types of multilocular peritoneal cysts.
- These cysts were categorized based on light microscopic examination into cystic mesotheliomas and cystic lymphangiomas.
Findings:
- Cystic mesotheliomas predominantly affect adult females and have a higher recurrence rate.
- Cystic lymphangiomas are more common in males, often present in childhood, and rarely recur.
- Histologic differentiation relies on cyst lining cell cytology and the presence of smooth muscle in the cyst wall.
Implications:
- Microscopic features provide key diagnostic criteria for differentiating peritoneal cystic lesions.
- Understanding the distinct clinical behaviors of cystic mesotheliomas and lymphangiomas informs prognosis and treatment strategies.
- Accurate classification impacts patient management and follow-up care for peritoneal cysts.