title: [Coexistence of sarcoidosis and thymic carcinoid].
abstract: We report a case of coexistence of sarcoidosis and thymic carcinoid. A 57-year-old man was pointed out the anterior mediastinal tumor when his generator of pacemaker was exchanged. The tumor was diagnosed as atypical carcinoid by percutaneous needle biopsy. Chest computed tomography (CT) revealed the mediastinal and right hilar lymphadenopathy. Preoperative transbronchial aspiration cytology revealed no malignancy and extirpation of the anterior mediastinal tumor was carried out together with left diagraphmatic nerve and pericardium. The histopathological examination of the pretracheal lymph node was sarcoidosis. Postoperative radiation was performed because the thymic carcinoid invaded the pericardium. The right hilar lymph node was enlarged after the radiation. Five months later, follow-up chest CT showed reduction of the right lymph node. He has been alive without recurrence of the thymic carcinoid for 3 years. Simultaneous occurrence of sarcoidosis and thymic carcinoid is extremely rare. Assessment of mediastinal lymph node is difficult either preoperatively and postoperatively. Histological confirmation of the lymph node and careful follow-up are necessary.
authors.affiliation: Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.
authors.forename: Tatsuaki
authors.initials: T
authors.lastname: Watanabe
authors.forename: Tetsu
authors.initials: T
authors.lastname: Sado
authors.forename: Hirotsugu
authors.initials: H
authors.lastname: Notsuda
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Eba
authors.forename: Yui
authors.initials: Y
authors.lastname: Watanabe
authors.forename: Takaya
authors.initials: T
authors.lastname: Suzuki
authors.forename: Masafumi
authors.initials: M
authors.lastname: Noda
authors.forename: Akira
authors.initials: A
authors.lastname: Sakurada
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Hoshikawa
authors.forename: Chiaki
authors.initials: C
authors.lastname: Endo
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Okada
authors.forename: Takashi
authors.initials: T
authors.lastname: Kondo
mesh_terms: D002276:Carcinoid Tumor / Q000150:complications* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012507:Sarcoidosis / Q000150:complications*; D013953:Thymus Neoplasms / Q000150:complications* / Q000601:surgery