title: [Thymic basaloid carcinoma].
abstract: This is a case of a 72-year-old male whose chest computed tomography (CT) revealed a 2.0 x 1.6 cm anterior mediastinal solid tumor during follow-up of an abnormal shadow of the lung. The tumor increased its size during preoperative follow-up, and multilocular cyst was also observed. Radical thymectomy was performed, and histopathologically the tumor was diagnosed as thymic basaloid carcinoma. Thymic basaloid carcinoma is a rare tumor and is often associated with multilocular thymic cyst. There are only 32 cases reported both locally and internationally. Surgical resection is the general treatment for this disease. Adjuvant radiotherapy can be considered in cases of incomplete resection and invasive tumor. In our case, no recurrence of the tumor was noted 12 months post-operative. Generally, the malignancy of thymic basaloid carcinomas are regarded as low-grade compared with other thymic carcinomas, however, since mortality and recurrence have been reported, careful follow-up is required.
authors.affiliation: Department of Surgery, Sapporo-Kosei General Hospital, Sapporo, Japan.
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Tsunoda
authors.forename: Koichi
authors.initials: K
authors.lastname: Tanaka
authors.forename: Kuniaki
authors.initials: K
authors.lastname: Okada
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ishizu
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Masuko
authors.forename: Tsunetake
authors.initials: T
authors.lastname: Hata
authors.forename: Hideki
authors.initials: H
authors.lastname: Kawamura
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Yokota
authors.forename: Hideki
authors.initials: H
authors.lastname: Yamagami
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Watarai
authors.forename: Kentaro
authors.initials: K
authors.lastname: Yokota
authors.forename: Toshiro
authors.initials: T
authors.lastname: Tanioka
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000601:surgery*; D006801:Humans; D008297:Male; D013934:Thymectomy; D013953:Thymus Neoplasms / Q000601:surgery*