title: Changes in CT density of solitary capillary hemangioma of the lung upon varying patient position.
abstract: Solitary capillary hemangioma of the lung (SCHL) is a rare benign tumor that is difficult to differentiate from other nodular lesions, including lung cancer, on CT. We report a case of 58-year-old man with an SCHL of the left lower lung. A nodular lesion 7 mm in size varied in CT appearance when the position of the patient was changed: it was part solid and part ground-glass opacity (mixed GGO) in the supine position, but pure GGO (nonsolid) in the prone position. However, the possibility of a malignancy could not be completely excluded because the density of the lesion had increased slightly over the past five years, so the patient underwent surgical resection. The histological diagnosis was SCHL. Therefore, changes in the CT density of a nodule upon changing patient position may indicate an SCHL.
authors.affiliation: Department of Radiology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan. tamina29@yahoo.co.jp
authors.forename: Mina
authors.initials: M
authors.lastname: Matsushita
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kawakami
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Matsushita
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Sugiyama
authors.forename: Maki
authors.initials: M
authors.lastname: Endo
authors.forename: Hisashi
authors.initials: H
authors.lastname: Shimojo
authors.forename: Masayuki
authors.initials: M
authors.lastname: Toishi
authors.forename: Masumi
authors.initials: M
authors.lastname: Kadoya
mesh_terms: D018324:Hemangioma, Capillary / Q000000981:diagnostic imaging*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011187:Posture; D014057:Tomography, X-Ray Computed