GANFORNINA ANDRADES, A; SALGUERO OLID, A; JIMENEZ DE JUAN, MC    FERNANDEZ ANGUITA, MJ. Acetabular aneurysmal bone cyst treated with intralesional doxycycline: a case report. []. , 31, 2, pp.213-215.   16--2021. ISSN 1699-714X.  https://dx.doi.org/10.4321/s1699-714x2021000200020.

Aneurysmal bone cysts (ABCs) are benign, expansile, osteolytic and locally aggressive tumors. Typically, ABCs arise in metaphysis of long bones. They often appear in children and young adults. Wide en bloc resection is associated with high recurrence rates. Other non-surgical treatment methods include intralesional injections of doxycycline. We present the case of a 7-year-old male with acetabular ABC who was successfully treated with 200 mg of intralesional doxycycline. During surgery, one needle was used for aspiration to lower the injection pressure. At 34 weeks follow up, we observed a lesion volume reduction and the patient presented an improvement of symptoms without recurrence.

: Aneurysmal bone cyst; bone; acetabular; tumour; doxycycline; recurrence.

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