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Inflammatory polyps are indistinguishable from allergic polyp on imaging.
If along with a clinical history of allergy, if at least two histological parameters of allergy were elevated then a diagnosis of allergic polyp can be deduced.
It was observed from the study that in the group of allergic polyps Eosinophil dominated inflammation, allergic mucin, goblet cell hyperplasia, hypertrophy of glands were observed in most cases on histopathology suggestive of allergy.
One patient was diagnosed as inverted papilloma with allergic polyp.
6% 3% 4% Dryness and -- 8% 2% crusting Foul smell -- 0 2% Nasolacrimal 0 0 duct injury TABLE II showing histopathological diagnosis and no of the patients Histopathological diagnosis No of patients Chronic non specific turbinate hypertrophy 203 Allergic turbinate hypertrophy 5 Chronic inflammatory polyp 2 Allergic polyp 1 Rhinoscleroma 1 Adenoid cystic carcinoma 1 Angioma 1 Pyogenic granuloma 1 Myofibroblastic sarcoma 1 Lepromatous leprosy 1 Rhinolith 1 Capillary hemangioma 1
Among nasal polyps, non-allergic polyps were much common than allergic polyps.
13) Allergic polyps are associated with nasal allergy and predominant eosinophilic infiltrate in the stroma whereas inflammatory polyps are found in chronic sinonasal infection.