We claim that these results indicate that skeletal and soft tissue IT hypertrophy seem to be compensatory and evolves with age rather than being congenital. Therefore, skeletal enlargement is prominent in anterior, middle, and posterior thirds of HIT in patients with septal deviation in adults but not in the pediatric group.

Agenesisofthesphenoidsinuses isavery rarely encountered anatomic variation. Findings onmagnetic resonance imagingcan mislead the radiologist and clinician. Therefore, thegold standardfor diagnosis is computed tomography (CT) of the paranasal sinuses. We present the case of a 28-year-old manwho was admitted toourhospital witha 3-month history ofheadache. CToftheparanasal sinuses revealed isolated bilateral sphenoid sinus agenesis.