label: Grade III Lymphomatoid Granulomatosis
label_lc: grade iii lymphomatoid granulomatosis
description: "Lymphomatoid granulomatosis characterized by the presence of aggregates of neoplastic large B-lymphocytes, usually admixed with pleomorphic and Hodgkin-like cells, in a background of chronic inflammation.  Necrotic changes are present and are usually extensive.  Grade III lymphomatoid granulomatosis should be approached clinically as a subtype of diffuse large B-cell lymphoma."