title: Intraosseous epidermal cyst of the sacrum. A case report.
abstract: An unusual case of intraosseous epidermal cyst is reported. The patient, a 45-year-old Japanese female, had suffered from lumbago and dysuria for about 15 years. X-ray examinations and CT scan revealed an expanded osteolytic tumor without marginal sclerotic change within the sacrum, which anteriorly invaded the surrounding soft tissues at the S2/3 level. At this time, chordoma was suspected, but epidermal cyst with foreign body granuloma was finally diagnosed from biopsy and surgical specimens.
authors.affiliation: 1st Department of Pathology, Tottori University School of Medicine, Yonago, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Adachi
authors.forename: H
authors.initials: H
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Yumoto
authors.forename: S
authors.initials: S
authors.lastname: Naniwa
authors.forename: M
authors.initials: M
authors.lastname: Okuno
authors.forename: K
authors.initials: K
authors.lastname: Morimoto
authors.forename: K
authors.initials: K
authors.lastname: Furuse
mesh_terms: D000328:Adult; D001847:Bone Diseases / Q000175:diagnosis* / Q000473:pathology; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D012447:Sacrum