Ear : congenital anomalies , Acute otitis media , CSOM , complicatios of otitis media
Nose : congenital anomalies, acute & chronic rhinitis , acute and chronic sinusitis
pharynx : adenoid, angiofibroma , nasopharyngeal cacinoma, acute and tonsillitis
Larynx : congenital anomalies, infections, laryngeal tumors, tracheostomy