Source:http://linkedlifedata.com/resource/umls/id/C0221269
MSH: A group of disorders having a benign course but exhibiting clinical and histological features suggestive of malignant lymphoma. Pseudolymphoma is characterized by a benign infiltration of lymphoid cells or histiocytes which microscopically resembles a malignant lymphoma. (From Dorland, 28th ed & Stedman, 26th ed),NCI: A polyclonal proliferation of lymphocytes without evidence of cytologic atypia.