title: [Malignant lymphoma with gastrointestinal amyloidosis, developing in the course of rheumatoid arthritis].
abstract: A autoimmune diseases complicated by malignant lymphoma have attention recently. studies in the international literature have demonstrated a significant complication of rheumatoid arthritis (RA) with malignant lymphoma. The authors report a case with a 15-year history of RA complicated with B cell lymphoma and gastrointestinal amyloidosis. A 66-year-old-woman was presented with easy fatigability and weight loss. with fever above 38 degrees C (100 degrees F). Clinical examination revealed marked abdominal tenderness and deformed joints of both hands and fingers. Rheumatoid factor was weakly positive. A diagnosis of malignant lymphoma (follicular large, B cell type) was made by inguinal lymph node biopsy and endoscopic biopsy which revealed amyloid (AA type) deposition in the stomach and duodenum. The case showed a remarkable increase of a specific antibody titer against Epstein-Barr (ER) virus, which has been suggested to cause RA or lymphoma. The complications of the diseases in this case suggests a similar causative mechanism for the two different diseases.
authors.affiliation: Department of Internal Medicine, Saga Medical School.
authors.forename: T
authors.initials: T
authors.lastname: Koyama
authors.forename: Y
authors.initials: Y
authors.lastname: Shimamoto
authors.forename: M
authors.initials: M
authors.lastname: Matuzaki
authors.forename: M
authors.initials: M
authors.lastname: Yamaguchi
mesh_terms: D000368:Aged; D000682:Amyloid / Q000378:metabolism; D000686:Amyloidosis / Q000209:etiology* / Q000378:metabolism; D001172:Arthritis, Rheumatoid / Q000150:complications*; D004386:Duodenum / Q000378:metabolism; D005260:Female; D005753:Gastric Mucosa / Q000378:metabolism; D005767:Gastrointestinal Diseases / Q000209:etiology* / Q000378:metabolism; D006801:Humans; D016393:Lymphoma, B-Cell / Q000209:etiology*; D008224:Lymphoma, Follicular / Q000209:etiology*
chemical_list: D000682:Amyloid