Takata, T Lymphocytic interstitial pneumonia associated with a marked increase in monoclonal IgM-kappa-type rheumatoid factor and serum CA19-9. [electronic resource] - Japanese journal of medicine - 92-6 p. digital Publication Type: Case Reports; Journal Article ISSN: 0021-5120 Standard No.: 10.2169/internalmedicine1962.30.92 doi Subjects--Topical Terms: Antigens, Tumor-Associated, Carbohydrate--analysisB-Lymphocytes--pathologyFemaleHumansHypergammaglobulinemia--complicationsImmunoglobulin M--analysisImmunoglobulin kappa-Chains--analysisMiddle AgedMonoclonal Gammopathy of Undetermined Significance--complicationsPlasma Cells--pathologyPulmonary Fibrosis--etiologyRespiratory Insufficiency--etiologyRheumatoid Factor--analysis