<prompt> Which of the following complication would result if the postero superior retraction pocket in the eardrum is allowed to progress?TympanoscelerosisTeiary cholesteatomaSecondary cholesteatomaSensori-neural hearing loss  <response>: Postero superior retraction pocket of the ear drum, if allowed to progress leads to complications such as sensorineural hearing loss, facial nerve involvement and a labrynthine fistula formation. Other extracranial complications which can occur includes labrynthitis, mastoiditis, petrositis and soft tissue abscess. 