Delayed postmastoidectomy bleed from anterior tympanic artery and its management using endovascular microcoils.

Bleeding during mastoidectomy usually occurs because of injury to the dura mater and/or sigmoid sinus, which, in most cases, can be controlled easily. The other important cause is damage to the internal carotid artery during its course in the middle ear. Bleeding from the external carotid artery or a branch of it is very rare and unknown. We hereby report an extremely rare and first case of delayed torrential bleeding after modified radical mastoidectomy, which was because of infective necrosis and subsequent blowout of the anterior tympanic branch of superficial temporal artery and its management using microcoils via an endovascular approach.