Diagnosis: moderate-to-severe pansinusitis (inflammation of all the paranasal sinuses, namely the bilateral frontal sinuses, bilateral ethmoid sinuses, bilateral maxillary sinuses and bilateral sphenoid sinuses.)
Surgery: Functional endoscopic sinus surgery (FESS), with bilateral frontal sinusotomies, bilateral complete ethmoidectomies (to clean out both the anterior and posterior ethmoid sinuses), bilateral middle-meatal antrostomies and possible bilateral sphenoidotomies.