title: Osteoid osteoma of the lateral talar process presenting as a chronic sprained ankle.
abstract: Pathologic conditions of the lateral talar process may be difficult to diagnose using physical examination and roentgenographs. A computed tomography scan of the hindfoot is often useful to define lesions of the lateral process. We report a case of osteoid osteoma of the lateral talar process that defied diagnosis for 4 years. The patient had an antecedent history of an inversion injury, which had been treated as a chronically painful sprained ankle without resolution of symptoms. The tumor was ultimately identified on a computed tomography scan, best seen on a coronal section through the talus. The patient had complete relief of pain after excisional biopsy of the tumor.
authors.affiliation: Department of Orthopaedic Surgery, University of South Alabama, Mobile, USA.
authors.forename: M T
authors.initials: MT
authors.lastname: Monroe
authors.forename: A
authors.initials: A
authors.lastname: Manoli
mesh_terms: D000328:Adult; D016512:Ankle Injuries / Q000175:diagnosis*; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002908:Chronic Disease; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013180:Sprains and Strains / Q000175:diagnosis*; D013628:Talus / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed