title: Malignant lymphomas of the gastrointestinal tract.
mesh_terms: D005770:Gastrointestinal Neoplasms / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D008207:Lymphatic Metastasis; D008223:Lymphoma / Q000175:diagnosis / Q000473:pathology; D008297:Male; D008875:Middle Aged