[An uncommon rib tumor in a child: aneurysmal bone cyst].

The authors report a case of rib aneurysmal-bone cyst in a rachitic 7-year-old boy. He had a 6-month history of right-back pain and dyspnea. Pulmonary X-ray and computed-tomography scan showed a huge mass located in the 4th right rib posterior arch. Right thoracotomy was carried out and complete surgical excision of the rib mass was successfully performed. Histological examination confirmed the diagnosis. Diagnosis and management of aneurysmal-bone cyst of the rib were discussed with a review of the literature.