摘要
Rhinosinusitis affects approximately 20%of the population,and the chronic rhinosinusitis represents over 90%of all cases of rhinosinusitis.The correct diagnosis is important for proper treatment and to predict its evolution.This study presents two cases of atypical frontal sinus disease,which the follow-up revealed a diagnosis of fungal rhinosinusitis.The present study aims to describe the cases of two patients with atypical lesions on the left frontal sinus;the treatment options,surgical approach,results,diagnosis and follow-up are further discussed.A significant increase in the reported cases of fungal rhinosinusitis has been seen in the last two decades,justified by the use of broad-spectrum antibiotics and steroids,as well as the increased number of immunocompromised individuals.This study reports the cases of two patients with a type of fungal rhinosinusitis named"fungal ball",characterized by a tangle of hyphae in the sinuses without tissue invasion.The treatment included surgical removal of the fungal infectious process with aeration of the affected sinus,and the procedure was successfully performed in our patients.