title: Subtrochanteric osteoid osteoma: A misdiagnosed case complicated by a hip fracture.
abstract: A 34-year-old man with a subtrochanteric osteoid osteoma localized to the lateral cortex of the left femur is reported. The patient presented with mild spontaneous pain of the lateral thigh and knee. He refused a radiographic examination and was treated as a greater trochanteric pain syndrome for 9 months. He was then admitted with a transcervical fracture of the neck of the left femur after a fall from standing height. The fracture was fixed with 3 cannulated screws and healed uneventfully. His symptoms worsened after the first postoperative year. Eighteen months postoperatively the pain was dull, worsening at night, and relieved only with anti-inflammatory drugs, and he had a limp. New radiographs and tomograms were indicative of a lateral subtrochanteric osteoid osteoma with a subperiosteal localization. The lesion was treated successfully with surgical excision of a piece of reactive bone including the nidus.
authors: Department of Orthopaedics, G Hospital of Naoussa, Greece.
authors: N K
authors: NK
authors: Sferopoulos
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000150:complications*; D003951:Diagnostic Errors; D006615:Hip; D006620:Hip Fractures / Q000209:etiology*; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000150:complications* / Q000175:diagnosis