Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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Case report
Table of Contents - Year : 2017 | Month : August | Volume : 11 | Issue : 8 | Page : MD01 - MD03

Advancing Cholesteatoma Secondary to Acquired Atresia of the External Auditory Canal: Clinical Perspectives MD01-MD03

Arijit Jotdar, Mainak Dutta, Sohag Kundu, Subrata Mukhopadhyay

Dr. Mainak Dutta,
Resident Medical Officer-cum-Clinical Tutor, Department of Otorhinolaryngology and Head-Neck Surgery Medical College and Hospital,
88, College Street, West Bengal-700073, Kolkata, India.

Acquired atresia of External Auditory Canal (EAC) is seldom encountered in routine otolaryngology practice. Apart from resulting in moderate-to-severe conductive hearing impairment, it is a potentially dreaded condition which might lead to canal cholesteatoma. Suspected to develop as a consequence of a pre-existing chronic otitis externa/media, the EAC atresia leads to proximal (medial) accumulation of desquamated epithelium and denatured keratin (the canal cholesteatoma) that further leads to aggravation of the chronic otitis, thereby initiating a vicious cycle. The canal cholesteatoma might progress unhindered into the middle ear and mastoid cavity, with its characteristic bone-eroding property, producing complications. A high index of clinical suspicion along with proper imaging are therefore essential to apprehend the disease progression in a patient presenting with an apparently innocuous EAC stenosis/atresia. In this report, we illustrate the clinical details of a young girl with unilateral acquired EAC atresia where canal cholesteatoma had turned extensive, invaded the middle ear cleft, and produced a post-aural fistula, thereby establishing one of the extreme outcomes of chronic otitis.