title: Extrathymic malignancy in patients with myasthenia gravis.
abstract: The presence of extrathymic malignancies was investigated in 296 thymectomised myasthenia gravis (MG) cases. In 5 of the 296 cases, extrathymic malignant tumours were observed. 4 of the 5 cases had thymomatous MG. 3 cases had malignant fibrous histiocytoma. Extrathymic malignancies were observed more frequently in thymomatous MG than in non-thymomatous MG. 59 cases (60 tumours), including our 5 cases, who had MG and extrathymic malignant tumours were compiled from the literature. In the 60 extrathymic malignancies, leukaemia and reticulo-endothelial sarcoma were the most frequent types.
authors.affiliation: Second Department of Surgery, School of Medicine, University of Tokushima, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Monden
authors.forename: T
authors.initials: T
authors.lastname: Uyama
authors.forename: S
authors.initials: S
authors.lastname: Kimura
authors.forename: T
authors.initials: T
authors.lastname: Taniki
mesh_terms: D000328:Adult; D001327:Autoimmune Diseases / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009157:Myasthenia Gravis / Q000150:complications*; D009369:Neoplasms / Q000150:complications*; D013934:Thymectomy; D013945:Thymoma / Q000150:complications; D013953:Thymus Neoplasms / Q000150:complications