title: [Two cases of clear cell tumor of the lung].
abstract: We report two cases of benign clear cell tumor of the lung, which were found as well-circumscribed lesions on chest X-ray films without any symptoms, and removed surgically. Light microscopy showed proliferation of clear cells filled with glycogen in both cases. Immunohistochemical examination performed in a case suggested that the tumor cells might be associated to a derivation from neural and/or smooth muscle cells, because of positive staining for NSE and SMA. In another case, the tumor formed a necrotic cavity, which could be detected by the preoperative MRI examination. This report might introduce a note of caution for the pathologic and radiographic diversity of this disease.
authors.affiliation: Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: H
authors.initials: H
authors.lastname: Aikawa
authors.forename: T
authors.initials: T
authors.lastname: Sado
authors.forename: S
authors.initials: S
authors.lastname: Maeda
authors.forename: T
authors.initials: T
authors.lastname: Hasumi
authors.forename: S
authors.initials: S
authors.lastname: Ono
authors.forename: S
authors.initials: S
authors.lastname: Fujimura
authors.forename: G
authors.initials: G
authors.lastname: Okaniwa
authors.forename: Y
authors.initials: Y
authors.lastname: Honda
authors.forename: T
authors.initials: T
authors.lastname: Takahashi
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed