CSOM: Clinical, radiological diagnosis and intra operative diagnosis

Abstract

Tubotympanic disease is characterized by a perforation of the tympanic membrane, which does not heal because of the persistence of infection and if this continues for long enough, the edges of the perforation are covered by the squamous epithelium from the outer surface joining the mucosa of the middle ear so that the perforation is lined by epithelium. CSOM patients who are planned for surgical management underwent HRCT Temporal Bone Scan before surgery. Intra operative findings of middle ear cleft in such patients was noted and compared with the pre-operative HRCT TEMPORAL BONE scan findings. The external auditory canal abnormalties were accuratively detected by HRCT scan with 100% sensitivity and 9.1% false positivity. Tympanic membrane abnormalities like perforation, retraction absence were identified with 79.3%, 83.9% and 100% sensitivity respectively by th HRCT scan.