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  • Title: Angiotropic large cell lymphoma presenting as thrombotic microangiopathy (thrombotic thrombocytopenic purpura).
    Author: Sill H, Höfler G, Kaufmann P, Horina J, Spuller E, Kleinert R, Beham-Schmid C.
    Journal: Cancer; 1995 Mar 01; 75(5):1167-70. PubMed ID: 7850716.
    Abstract:
    BACKGROUND: Angiotropic large cell lymphoma is a rare lymphoproliferative disorder that affects vessels of almost all organs. Therefore, many different signs and symptoms can be observed and may delay a rapid diagnosis in these patients. However, no association between angiotropic large-cell lymphoma and thrombotic microangiopathy (TMA) has been reported so far. METHODS: The case report describes a 69-year-old female Caucasian who presented with fever, neurologic symptoms, microangiopathic hemolytic anemia, thrombocytopenia, and hyaline thrombi within small vessels. TMA was diagnosed and intense treatment, including plasma exchange and corticosteroid therapy, was initiated. Nevertheless, the patient died 3 days after admission. A postmortem examination including immunohistochemistry and molecular studies was performed. RESULTS: Autopsy revealed angiotropic large cell lymphoma with tumor cell aggregates in small vessels of the brain, myocardium, lungs, liver, small and large intestines, mesenterium, kidneys, and lymph nodes. Immunohistochemical analysis of the tumor cells showed positive reactions with B-cell markers, but negative T-cell and epithelial cell markers. Molecular studies using polymerase chain reaction with primers for the rearranged immunoglobulin heavy chain and the T-cell receptor beta chain gene confirmed the diagnosis of a monoclonal B-cell disorder. CONCLUSION: TMA can occur in association with angiotropic large cell lymphoma and, furthermore, can be its sole clinical manifestation.
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