<prompt> A 20 year old male come to casuality with head injury. Examination reveals normal counsciousness, clinically normal and blood in the tympanic membrane. Most likely cause isExtradural haemorrhageSudural haemorrhageIntraventricular haemorrhageComplete basilar fracture  <response>: Skull Base fractures Anterior Cranial Fossa Fracture Subconjuctival hematoma CSF Rhinorrhea Carotico-cavernous fistula Periorbital hematoma or Raccoon eyes Middle Carnial Fossa Fracture CSF otorrhea or Rhinorrhea Hemotympanum Ossicular disruption Battle sign: Brusing behind the ear 7th 8th cranial nerve palsies Ref: Bailey and love 27th edition Pgno :333 