Aspergillus spp. is the most common fungal infection
of the paranasal sinuses. The causative organism is a
spore-forming filamentous fungus which occurs as a
saprophyte in soil and decaying vegetable matter and is
spread by airborne transmission. Transmission between
humans is unknown [3]. The most common septate fungi
causing fungal rhinosinusitis are A. fumigatus and A.
flavus. In most parts of the world, the organism usually
isolated is A. fumigatus. In India, Aspergillus flavus is
isolated in more than 80% of the cases of acute fungal
rhinosinusitis [4].