Abstract

Introduction: The imaging modalities available for temporal bone analysis include plain radiographs, multidirectional tomography, angiography, CT and MRI. HRCT is excellent for air spaces and cortical bones, whereas MRI is superior for soft tissue anatomy and vascular abnormalities.
Material and Methods: A prospective study of 100 cases was done. The study included all patients who had HRCT temporal bone and had clinical signs and symptoms of external, middle, and inner ear diseases, congenital abnormalities, or trauma.
Results: Infectious aetiology accounted for 60 of the total 100 cases, making it the most prevalent aetiology affecting the temporal bones. Out of 60 infective cases 25 cases were of cholesteatoma, 30 were of otomastoiditis /CSOM, and 5 were of otitis externa. A total of 20 traumatic aetiology patients with temporal bone fractures were observed. Out of these 20 patients 5 had longitudinal fracture ,9 had transverse fracture and 6 had mixed fractures. Four individuals in the current research exhibited symptomatic congenital abnormalities, including two cases of microtia with EAC atresia, one with an anomalous facial nerve, and one with fused ossicles.
Conclusion: HRCT is beneficial for diagnosing, planning surgery, managing temporal bone diseases as well as post surgical follow-up. HRCT is superior to radiographs in depicting detailed anatomy as well as diseases of temporal bone. It is better than MRI in providing bony details.