title: Diffuse lymphosarcoma of the colon simulating ulcerative colitis.
mesh_terms: D003093:Colitis, Ulcerative / Q000175:diagnosis*; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged