Study of Temporal Bone Diseases Using High Resolution Computed Tomography ( HRCT)

Abstract

This study was aimed to study the temporal bone diseases using HRCT. Data was obtained retrospectively from 52 patients of different ages and gender who are selected from ENT hospital and clinically suspected of having symptoms related to the temporal bone such as ear discharge, conductive hearing loss, vertigo and facial palsy. traumatic patients were excluded. The study was done at Alzaytouna specialist hospital&Antalya medical center during 2016 year. HRCT images were obtained by taking 2mm sections using ultra high algorithm in both coronal and axial planes. Contrast media was used as and when required. The results were then analyzed statistically. In this study temporal bone diseases were more common in female 60% than male population 40%. Majority of patient are in the age group of 21-40 years old. Infection was the most common pathology 82%, followed by neoplasm (benign and malignant) 10%, congenital malformation 2% and other pathological lesions 6%. The incidence of unilateral involvement 66% is more than bilateral involvement 34%. HRCT has major role in the demonstration of detailed anatomy and identifying various findings related to the location, extent and complication of the disease. HRCT can able to evaluate air space and bony structure and it can detect the presence of opacification and soft tissue density but cannot able to distinguish the type of tissues, the clinical correlation and biopsy was advised in this cases. HRCT has a great importance in guiding the surgical approach that can prevent further serious complications.