[Presentation of a case of spinal osteoid osteoma causing dorsal scoliosis. Role of high resolution CT].

A case of vertebral osteoid osteoma in a 19 years old female is described. The tumor was located at D7 right peduncle and was responsible for a mild left convex curve dorso-lumbar scoliosis. The patient had been complaining for 3 years because of a stablike pain at medio-dorsal level. The symptomatology was exacerbated by erect position, during the night and was relieved by salicylic acid. Diagnosis was suspected on the basis of scintigraphic and computed tomographic features and confirmed at surgery. Limited value of plain films and the importance of bony scintigraphy and high resolution computed tomography to establish the localization and nature of the lesion are stressed.