Pseudoaneurysm of an aberrant internal carotid artery in the middle ear caused by myringotomy

An aberrant internal carotid artery (ICA) is a rare abnormality associated with life-threatening otorrhagia if inadvertently injured during middle-ear surgery including myringotomy. We present a case where a 3-year-old girl experienced massive otorrhagia following myringotomy, and computed tomographic scan showed the aberrant ICA. Bleeding was controlled by ear canal packing, but rebleeding occurred. Investigations by carotid angiography demonstrated a pseudoaneurysm of the aberrant ICA in the middle ear.

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