What is The most common cause of fungal sinusitis is( REPEAT QUESTION) and explain in detail?
Fungal infections of the paranasal sinuses are uncommon and usually occur in individuals who are immunocompromised. Aspergillus fumigatus is most commonly involved in allergic fungal sinusitis and sinus mycetoma. (Ref: Textbook of diseases of ENT, PL DHINGRA, 7th edition, pg no. 220)