Osteoid osteoma causing subtalar joint arthralgia: a case report.
The authors describe a juvenile patient with an osteoid osteoma in the foot-a relatively rare location for this type of lesion. The appearance of this lesion in a juxtaarticular location is even more rare. An 11-year-old boy with a 6-month history of limping secondary to subtalar joint pain presented with a juxtaarticular osteoid osteoma located within the calcaneus. The lesion was present beneath the sinus tarsi and the subtalar joint region. Plain radiographs showed equivocal changes; however, magnetic resonance imaging clearly showed a central nidus. The lateral aspect and midbody of the calcaneus showed a spherical focus of diminished signal on both the T1- and T2-weighted images. This focus had a surrounding rim of significantly diminished signal on all sequences. Thus, findings were most consistent with an osteoid osteoma, although a Brodie abscess could not be ruled out. Surgical excision was performed and led to complete resolution of pain and limping. The pathology report confirmed the diagnosis of osteoid osteoma.
Morris
Gregory B
GB
Division of Podiatric Surgery, Department of Orthopedics, Podiatry, and Sports Medicine, Kaiser Permanente Medical Center, Santa Clara, CA, USA.
Goldman
Flair D
FD
D018771:Arthralgia / Q000209:etiology*; D001859:Bone Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D005534:Foot Diseases / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D005684:Gait; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010017:Osteoma, Osteoid / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D013380:Subtalar Joint