Analysis of clinical characteristic of the middle ear malformation with cholesteatoma

Abstract

Objective To discuss the clinical characteristic of middle ear malformation with cholesteatoma. Methods From September, 2011 to November, 2016, 23 cases of middle ear malformation with cholesteatoma were collected. Their symptoms, ENT examination, temporal bone high resolution computed tomography (HRCT) and intra-operative findings were analyzed. Results All 23 patients had hearing loss. 90.0% patients had ear discharge and tin-nitus. 86.96% patients had perforation in pars flaccida of tympanic membrane. 95.7% patients had poor mastoid gasification. 73.9% patients had undeveloped or dysplastic tympanic antrum. 100% patients had destruction of the ossicular chain. 56.5% patients had malformation of the ossicular chain. 52.2% patients had exposed facial nerve. 30.4% patients had hyperplasia of the attic bone. Conclusion The symptoms and physical examinations of middle ear malformation with cholesteatoma are the same as middle ear cholesteatoma. Poor mastoid gasification can usually be detected on temporal bone HRCT. The most common malformation is dysplastic tympanic antrum, followed by malformation of the ossicular chain, exposed facial nerve and hyperplasia of the attic bone. Temporal bone HRCT can indicate the mal-formation and destruction quite well. Key words: Middle ear malformation; Cholesteatoma; Temporal bone; High resolution computed tomography (HRCT)