title: Multifocal variant of heterotopic ossification.
abstract: In this case report, we present a 25 year follow-up of a single patient with a previously undescribed multifocal variant of heterotopic ossification. The patient presented with multiple occurrences of lesions similar to myositis ossificans atraumatica as well as some lesions resembling exostoses/osteochondromas. Several images and histological sections show the range of appearances and locations of her somewhat disparate lesions, including an exostosis with intraspinal extension. Until additional similar cases are brought forward, we consider this a unique variant of heterotopic ossification. The precise aetiology of this patient's condition is unknown.
authors.affiliation: Department of Radiology, University of South Alabama, 2451 Fillingham Street, Mobile, Alabama 36617, USA. carotop111@aol.com
authors.forename: J M
authors.initials: JM
authors.lastname: Pollock
authors.forename: B G
authors.initials: BG
authors.lastname: Brogdon
authors.forename: J
authors.initials: J
authors.lastname: Simonds
authors.forename: C
authors.initials: C
authors.lastname: Boudreaux
authors.forename: P
authors.initials: P
authors.lastname: Nimityongskul
authors.forename: D S
authors.initials: DS
authors.lastname: Massi
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis / Q000473:pathology; D002348:Carpal Bones; D003937:Diagnosis, Differential; D004550:Elbow; D005096:Exostoses / Q000175:diagnosis / Q000473:pathology; D005260:Female; D006615:Hip; D006801:Humans; D009221:Myositis Ossificans / Q000175:diagnosis / Q000473:pathology; D009999:Ossification, Heterotopic / Q000175:diagnosis* / Q000473:pathology; D015831:Osteochondroma / Q000175:diagnosis / Q000473:pathology; D010329:Patella; D013125:Spinal Neoplasms / Q000175:diagnosis; D013639:Tarsal Bones; D013977:Tibia; D014057:Tomography, X-Ray Computed