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Salivary Gland Choristoma in External Auditory Canal: A Case Report
Vijayashree Raghavan1, Pooja E Moorthy1, Sudha Srinivasan1
1Department of Pathology, Chettinad Hospital and Research Institute, Chennai, Tamil Nadu, India.
Introduction:
Salivary gland choristomas have been described in the middle ear but tend not to involve the external auditory canal.
Case Presentation:
A 6-year-old boy with situs inversus totalis presented with congenital hearing loss in the left ear due to external auditory canal atresia. High resolution computed tomography of the temporal bone demonstrated a soft tissue obstruction of the external auditory canal with a normal middle ear. Histopathologically, this was a salivary gland choristoma. Post operatively the patient had a facial nerve palsy.
Conclusion:
Salivary gland choristomas of middle ear have been reported, but have not been described with external auditory canal atresia and situs inversus totalis.

