A soft tissue aneurysmal bone cyst located in the right gluteus medius of a 21-year-old man is reported. On conventional radiography, the lesion demonstrated a spherically trabeculated mass with a calcific rim. On CT scan, it showed a well-organized peripheral calcification resembling a myositis ossificans. On MRI, it presented as a multilocular, cystic lesion with fluid-fluid levels. The lesion had no solid components except for intralesional septa. Although findings on imaging and histology were identical to those described in classical aneurysmal bone cyst, diagnosis was delayed because of lack of knowledge of this entity and its resemblance to the more familiar post-traumatic heterotopic ossification (myositis ossificans).
Dissection of a cerebral blood vessel is a rare complication of acute neurotrauma with a high incidence of morbidity and mortality. We report on a case of a pediatric patient with severe neurological symptoms in whom angiography showed evidence of a basilar artery dissection. The patient was heparinized and recovered uneventfully.
This case demonstrates that an endovascular approach can be an excellent treatment for aneurysms of the deep femoral artery, thereby avoiding an open surgical procedure while preserving the patency of the deep femoral artery.
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