[Clinical study of congenital cholesteatoma of the middle ear].

We studied 35 ears of 34 patients with congenital cholesteatoma who were operated between June 1992 and May 2003, focusing on the localization and progression of congenital cholesteatoma. Patients were 2 to 55 years of age. Congenital cholesteatoma was diagnosed based on two intraoperative findings: 1) no continuity between the tympanic membrane and cholesteatoma, 2) no presence of perforation, retraction, or granulation of the tympanic membrane.

[Congenital auditory ossicle malformation without external ear abnormality].

In 29 ears of 24 patients with auditory ossicle malformation, but without external ear abnormalities, who were operated on at our clinic in the 10 years between June 1993 and June 2002, we studied the condition of ossicles, preoperative examination, surgical procedures, and postoperative hearing improvement. Our study did not include patients with cholesteatoma or those with only fixed stapes but without ossicular deformity. Samples were 12 ears of 11 men and 17 ears of 13 women.