Abstract
Osteoid osteoma is a common benign bone tumor that infrequently affects the metatarsal bones. We present the case of a 29-year-old female that has mistakenly been treated for a stress fracture of the 4th metatarsal bone for almost 3 years. During this period, 4 conventional radiographs, 4 MRIs and 1 CT have been performed. After referral to our institution repeated thorough anamnesis and reevaluation of the diagnostic imaging raised suspicion for an osteoid osteoma. The patient was successfully treated with magnetic resonance-guided focused ultrasound (MRg-FUS). Osteoid osteoma is a rare but important differential diagnosis of stress fractures. Typical clinical presentation and diagnostic pathways should be known by professionals treating patients with nontraumatic foot and ankle pain.
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