title: Video-assisted thoracoscopic surgery for ectopic middle mediastinal thymoma in a patient with myasthenia gravis.
abstract: We present a rare case of middle mediastinal thymoma with myasthenia gravis. A 51-year-old man presented with right ptosis and muscle weakness, and received a diagnosis of generalized myasthenia gravis. Computed tomography of the chest showed a 20-mm nodule in the middle mediastinum, suggesting a possible ectopic thymoma. He underwent video-assisted thoracoscopic extended thymectomy and resection of the tumor. Histologic examination revealed an ectopic thymoma and ectopic thymic tissue around the tumor. One year after the operation, his condition remains well controlled solely with tacrolimus. Careful preoperative radiologic examination concerning possible ectopic thymoma outside the dissection area of the extended thymectomy is recommended.
authors: Department of Chest Surgery and Surgical Pathology, Toho University Omori Medical Center, Tokyo, Japan.
authors: Satoshi
authors: S
authors: Koezuka
authors: Fumitomo
authors: F
authors: Sato
authors: Yoshinobu
authors: Y
authors: Hata
authors: Hajime
authors: H
authors: Otsuka
authors: Rena
authors: R
authors: Yuasa
authors: Takaharu
authors: T
authors: Kiribayashi
authors: Daisuke
authors: D
authors: Sasai
authors: Kazutoshi
authors: K
authors: Shibuya
authors: Keigo
authors: K
authors: Takagi
authors: Yoshinori
authors: Y
authors: Watanabe
mesh_terms: D001706:Biopsy; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D009157:Myasthenia Gravis / Q000150:complications*; D020775:Thoracic Surgery, Video-Assisted / Q000379:methods*; D013934:Thymectomy / Q000379:methods*; D013945:Thymoma / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D013953:Thymus Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D014057:Tomography, X-Ray Computed