External auditory canal chondroid syringoma with bone erosion: A CARE case report

Introduction: Chondroid syringoma or ceruminous pleomorphic adenoma is a benign mixed cutaneous tumor. It is the second most frequent glandular lesion in the external auditory canal, but no cases associated with bone erosion were found in a PubMed search.

Case report: The present CARE case report details a chondroid syringoma in the external auditory canal with associated bone lysis, and its management.

Discussion: Chondroid syringoma is a differential diagnosis for other external auditory canal tumors. Forms causing bone erosion are rare, but should not challenge the diagnosis. Current treatment consists in complete and broad surgical resection and prolonged follow-up due to the risk of recurrence and of malignant transformation.