It should be given at induction or upto 30 minutes before surgery. The following are the different types of surgeries and antibiotics coverage that is to be done accordingly: Surgery
It compose of removal of entire medial wall from the level of the ethimodal vessels inferiorly and across the floor as far as the infraorbital nerve and lateral to this
From the primary site the tumour may spread in one or more of the following directions: Anteriorly to the nasal cavity and paranasal sinuses, pterygopalatine fossa and apex of the