Resumo

LOPEZ-TORRES HIDALGO, Jesús; SAEZ MORENO, Miguel Ángel; CASTANO DIAZ, Marta  e  MOYA MENESES, Manuel. Aneurysmal bone cyst. Rev Clin Med Fam [online]. 2020, vol.13, n.1, pp.93-96.  Epub 20-Abr-2020. ISSN 2386-8201.

Aneurysmal bone cyst is a reactive bone lesion formed by cystic cavities containing blood. It generally causes mild to moderate pain, but the patient can present deformity and pathological fracture, since aggressive local growth and cortical destruction are frequent during its development. It occurs most frequently in the first two decades of life, and accounts for approximately 1.4% of all primary bone tumors.

We present the case of a 16-year-old man diagnosed with aneurysmal bone cyst who initially presented mechanical pain in left ankle. The patient underwent surgical resection and reconstruction with bone graft. The evolution was favorable and the patient remains asymptomatic several months after surgery.

Aneurysmal bone cyst is probably due to a pathophysiological change caused by a trauma or by an anomalous vascular process. The family doctor should suspect this disease when the bone radiography shows a lytic, multilocular, expansive lesion.

Palavras-chave : Bone Cysts, Aneurysmal; Bone Neoplasms; Lower Extremity.

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