label: Indolent NK-Cell Lymphoproliferative Disorder of the Gastrointestinal Tract
label_lc: indolent nk-cell lymphoproliferative disorder of the gastrointestinal tract
description: An indolent lymphoproliferative disorder that affects the gastrointestinal tract. The neoplastic lymphocytes have the typical phenotype of NK-cells, are of medium to large size, show mild pleomorphism, and are EBV infection negative. Features that characterize extranodal NK/T-cell lymphomas (e.g., angioinvasion and angiodestruction) are not present.