Endoscopy findings Endoscopy findings Endoscopy findings MRI findings MRI findings MRI findings
Frequency Percentage Frequency Percentage
Middle turbinate 46 93.87% Maxillary sinus 54 90%
Inferior turbinate 25 51.02% Ethmoid sinus 47 78.33%
Nasal septum 4 8.16% Sphenoid sinus 35 58.33%
Superior turbinate 3 6.12% Frontal sinus 25 41.66%
Orbital extension 12 20%
Intracranial extension 2 3%