Imaging of intra-articular osteoid osteoma.
Intra-articular osteoid osteoma accounts for approximately 13% of all osteoid osteomas and presents as a monoarthropathy. Radiographs commonly do not identify the nidus, and in this event, MRI is likely to be the next imaging investigation. MRI may show a variety of appearances depending upon the age of the lesion. This article illustrates the imaging features of intra-articular osteoid osteoma, with emphasis on MRI. CT remains the investigation of choice for identifying the nidus.
Allen
S D
SD
Department of Radiology, The Royal National Orthopaedic Hospital Trust, Stanmore, Middlesex, UK.
Saifuddin
A
A
D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002648:Child; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D010017:Osteoma, Osteoid / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D014057:Tomography, X-Ray Computed / Q000379:methods