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Middle Eastern intestinal lymphoma.

P G Isaacson

    Seminars in Diagnostic Pathology
    |August 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Middle Eastern intestinal lymphoma presents as three distinct types, including Mediterranean lymphoma (alpha chain disease) and Western type lymphoma. These lymphomas originate from mucosa-associated lymphoid tissue, with a third type resembling Burkitt

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    Area of Science:

    • Gastroenterology
    • Oncology
    • Pathology

    Background:

    • High incidence of intestinal lymphoma observed in the Middle East since the 1960s.
    • Previously considered a single entity, now recognized as at least three distinct types.

    Purpose of the Study:

    • To differentiate and characterize the distinct types of intestinal lymphoma prevalent in the Middle East.
    • To explore the origins and histological features of these lymphomas, particularly their relation to mucosa-associated lymphoid tissue.

    Main Methods:

    • Histological examination of intestinal lymphoma biopsies.
    • Clinical presentation analysis, including age, symptoms (malabsorption), and paraproteinemia.
    • Comparison of pathological features across different lymphoma types.

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    Main Results:

    • Mediterranean lymphoma (alpha chain disease/IPSID): Affects young adults, proximal small intestine, presents with malabsorption, characterized by plasma cell infiltration followed by lymphoma, and often associated with alpha-1 heavy chain paraproteinemia.
    • Western type lymphoma (WTL): Occurs in older patients, lacks malabsorption and paraproteinemia, is of follicular center cell type, with no preceding plasma cell infiltrate.
    • Third type: Primarily affects the ileo-cecal region in children, histologically indistinguishable from Burkitt's lymphoma.
    • Both MTL and WTL are suggested to arise from mucosa-associated lymphoid tissue (MALT).

    Conclusions:

    • Middle Eastern intestinal lymphoma comprises at least three distinct entities with differing demographics, clinical presentations, and histological characteristics.
    • Mediterranean lymphoma and Western type lymphoma share origins from mucosa-associated lymphoid tissue.
    • A third type of intestinal lymphoma in children in this region is histologically identical to Burkitt's lymphoma.