Tympanic cavity<unk>  or hematotympanum, refers to the presence of blood in the tympanic cavity of the middle ear.<unk>  is often the result of basilar skull fracture.<unk>  refers to the presence of blood in the middle ear, which is the area behind the eardrum. In most cases, the blood is trapped behind the eardrum, so no discharge is visible. Treating<unk>  depends on the underlying cause. __TOC__
Hemotympanum
Cauliflower ear
Ateronon
Orbital septum
Fontanelle
Lacrimal groove
Syrinx 
Tophus