Results: Site of tumor on lateral pharyngeal recess is 79.03%; all tumor enhanced by contrast medium and heterogenuos (90, 32%); hypervascular (79, 03%); intratumoral necrosis (14, 52%); abnormal Rosenmuller fossa (70, 97%), Eustachian (64, 51%); extending into the pterygomaxillary fossa (56, 45%), the nasal cavity (33, 87%); skull base erosion (14, 52%), invades maxillary sinuses (12, 90%), pterygomaxillary process (11, 29%).