title: [Aneurysmal bone cyst arising in the rib; report of a case].
abstract: We experienced with a relatively rare case of an aneurysmal bone cyst (ABC) arising in the left rib. A 34-year-old female, had experienced chest discomfort on the left anterior side and pain for 1 year. A chest X-ray suggested a left chest wall tumor involving the ribs. Computed tomography (CT), magnetic resonance imaging (MRI) and a bone scintigram revealed an expansive tumor of the anterior portion of the left 4th rib involving the 3rd and 5th rib with "blow out appearance" and "fluid-fluid level". Wide excision of the tumor and adjacent muscle tissue was performed with an antero-axillary incision. Chest wall reconstruction was performed with prolene mesh (140 x 90 mm). The resected specimen showed an encapsulated bony mass (75 x 60 x 35 mm) with multiple blood-filled spaces. Histopathological diagnosis was an ABC originating in the left 4th rib. She has been doing well with no evidence of recurrence 12 months postoperatively.
authors.affiliation: Respiratory Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan.
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Wakamura
authors.forename: M
authors.initials: M
authors.lastname: Kadokura
authors.forename: Y
authors.initials: Y
authors.lastname: Kamio
authors.forename: A
authors.initials: A
authors.lastname: Kitami
authors.forename: H
authors.initials: H
authors.lastname: Nakajima
authors.forename: T
authors.initials: T
authors.lastname: Kushihashi
authors.forename: A
authors.initials: A
authors.lastname: Shiokawa
mesh_terms: D000328:Adult; D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis* / Q000601:surgery*; D001842:Bone and Bones / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011877:Radionuclide Imaging; D012272:Ribs / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed