A Case of Ocular Myasthenia Gravis with Thytmolipoma and Thymic ?Cyst

J Korean Neurol Assoc > Volume 13(3); 1995 > Article

Journal of the Korean Neurological Association 1995;13(3): 676-681.

안형 중증근무력증에 동반된 흉선지방종과 흉선낭종 1예

김진국, 변현숙, 권재철, 이태규, 하충건, 임병훈

경상대학교 신경과

A Case of Ocular Myasthenia Gravis with Thytmolipoma and Thymic ?Cyst

Jin Kuk Kim, M.D., Hyeon Suk Byeon, M.D., Jae Cheol Kweon, M.D., Te Gyu Lee, M.D., Choong Kun Ha, M.D., Byeong Hoon Lim, M.D.

Department of Neurology, College of Medicine, Gyeongsang National University Department of Neurology, College of Medicine, Gyeongsang National University

Abstract

The incidence of thymolipoma or thynuc cyst is very rare among the tumors of thymic origin, which are usually benign or invasive thymoma. Thymic tumor has been found among 10 to 15% of the patients with myasthenia gravis(MG). However the patients with thymolipoma or thynuc cyst rarely manifestated as MG. Moreover the case of MG with thymolipoma and thymic cyst is extremely rare ; Only one case has been reported hitherto. We hereby report a 41-year-old woman presenting as ocular MG with thymolipoma and thymic cyst. She complained diplopia, ptosis and headache, which had begun 3 months prior to admission and have been fluctuating thereafter. Ocular MG was confirmed by positive Tensilon and Jolly test. Her chest CT showed an enlarged thymus which turned out to be thymolipoma with thymic cyst on the pathologic examination. Although rare, thymolipoma and/or thymic cyst should be considered in the differential diagnosis of thymic tumor in MG.