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[Cystic mesothelioma of the greater omentum]

M Ignjatovic, S Cerovic, V Cuk

    Vojnosanitetski Pregled
    |November 20, 2001
    PubMed

    Insights

    Peritoneal cystic mesothelioma is a rare tumor. This study presents two large cases found in the greater omentum, highlighting successful surgical outcomes.

    Area of Science:

    • Oncology
    • Gastroenterology
    • Pathology

    Background:

    • Peritoneal cystic mesothelioma is an exceptionally rare neoplasm.
    • Cases involving the greater omentum are particularly scarce in medical literature.

    Observation:

    • Two adult patients presented with large cystic tumors (30 cm and 35 cm) in the greater omentum.
    • Preoperative differential diagnosis excluded other cystic origins, including pseudocysts and parasitic cysts.
    • Clinical presentation lacked specific characteristic symptoms.

    Findings:

    • Diagnosis was confirmed through operative findings and immunohistochemical analysis.
    • Tumor cells showed positive staining for keratin and vimentin.
    • Other markers such as EMA, Actin, S-100, NSE, chromogranin, and synaptophysin were negative.

    Implications:

    • Cystic mesothelioma of the greater omentum, though rare, is a distinct entity.
    • Non-infiltrative nature suggests favorable prognosis.
    • Simple surgical excision proved effective in these cases, indicating a potentially straightforward treatment approach.

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