RESUMO
Aneurysmal bone cyst [ABC] is a locally destructive lesion of the bone rather than a true neoplasm. The pelvis is not an unusual site for an ABC; approximately 12% of cases occur in this location. We present a case of aneurysmal bone cyst [ABC] in ischiopubic ramus in a 22 years old male who presented with right inguinal swelling and pain. He was evaluated with X-ray and Magnetic Resonance Imaging MRI of pelvis. A review of literature regarding this rare site of ABC with radiological features is also described in this case report. ABC of ischiopubic ramus is an uncommon entity hence diagnosis of such a case requires proper clinical, radiological and histopathological evaluation to rule out other differential diagnoses of an expansile, osteolytic lesion. This will help in selecting a proper treatment plan