All our AFRS patients presented with nasal obstruction and nasal polyps and this finding is comparable with study of Khattar et al.20 In addition to demonstration of fungal elements while diagnosing AFRS, Allergic mucin forms an important diagnostic criterion for AFRS and in present study, Allergic mucin was present in 100%patients diagnosed as AFRS. Here, MUC5AC is linked to Nasal polyposis.