Abstract
We report a case in which torticollis was the first symptom of atlantal tumor. A 4-year-old girl developed neck pain and torticollis following minor neck injury. Computed tomography scan showed atlanto-axial rotatory subluxation. Destructive and osteolytic lesions were also noticed in the right lateral mass of the atlas. We concluded that the etiology of this torticollis was pathologic a dislocation due to atlantal tumor. After performing traction for 2 weeks, neck pain and torticollis disappeared. This was followed by 6 months of simple immobilization. During the follow-up period, we noticed progression in osteosclerosis in the right lateral mass of the atlas by computed tomography scan, and refrained from, biopsy and other treatments except traction and simple immobilization. Up to the present, neck pain and torticollis has not recurred. Although we did not perform biopsy, we concluded that the tumor was eosinophilic granuloma from the age, history, and imaging.