Abstract
A 60-year-old woman with diarrhea was referred to our hospital due to low values for serum total protein, liver dysfunction with elevated biliary enzymes, and abnormal shadows on chest X- ray from a health examination. Computed tomography of the chest showed a mass in the anterior mediastinum, and the specimen from thymectomy revealed type-AB thymoma. We diagnosed Good’ s syndrome, a rare form of acquired immunodeficiency, because of the thymoma concomitant with agammaglobulinemia. Further examinations revealed multiple tumors in the liver indicating metastatic thymoma. Diarrhea disappeared after total thymectomy, but hypogammaglobulinemia persisted. The patient is now receiving immunoglobulin-replacement therapy and has remained well for the two and a half years since the first visit.
