[Congenital dermoid cyst of the middle ear with invasion into the external auditory canal in a 1 year 10 month old child].

The article presents a casuistic clinical observation of the treatment of a child aged 1 year 10 months with a dermoid cyst of the middle ear. The diagnosis was established on the basis of computed tomography and histological examination of the mass. Surgical treatment was performed in the volume of a separate attic-anthromastoidotomy with removal of the formation and one-stage type III tympanoplasty. In the catamnesis, the child's condition is satisfactory, the otoscopic picture shows no signs of inflammation.