Conductive Hearing Loss - Differential Diagnosis Algorithm Normal Otoscopy - Middle Ear: • Otosclerosis • Congenital (Ossicular Chain Malformation) • Eustachian Tube Dysfunction Abnormal Otoscopy - External Ear: • Cerumen • Foreign Body • Otitis Externa • Inflammation • Congenital (Atresia) • Trauma • Benign Mass (Polyp, Osteoma, Exostosis) • Tumors (SCC) • Dermatologic Middle Ear: • Otitis Media • Tympanic Membrane Perforation • Cholesteatoma • Trauma (barotrauma) • Tumors (Glomus, Adenoma) • Eustachian Tube Dysfunction #Conductive #HearingLoss #Differential #Diagnosis #Algorithm #Causes
