7 years, Female, with right ear pain and bleeding. Evaluate for vascular malformation. There is enlargement and deformity of the right auricle which measures 4.5 x 1.5 x 5.9 cm and is diffusely contrast-enhancing; there are associated prominent flow voids suggestive of a vascular malformation (series 401, image 16) . The vasculature (ECA/retromandibular vein) within the right parotid gland is also more prominent when compared to the left parotid gland. Minimal prominent vascular enhancement is also seen involving the subcutaneous tissues overlying the right mastoid air cells. Remainder of the visualized scalp and deeper temporal bone structures appear within normal limits. There is mild hypoplasia involving the inferior cerebellar vermis can be normal variant. Limited evaluation of the visualized brain parenchyma appears otherwise unremarkable. Bone marrow signal is within normal limits.
Enlargement of the right auricle with extensive enhancement and prominent flow-voids. Findings are suspicious for arteriovenous malformation. MRA covering the ear or conventional angiogram may be considered for further evaluation. 