抄録
Five cases of congenital meatal stenosis with microtia and retro-auricular abscess due to infection of the associated cholesteatoma were reported.
Reviewing the literature, two mechanisms were suggested for cholesteatoma formation in the ears with congenital meatal atresia or stenosis: Development from a nest of epithelial cells entrapped in the atretic or stenotic meatus during the embryonal growth, and insufficient clearance of keratin debris due to failure of the normal migratory pattern of the meatal skin.
The latter mechanism seems to be the primary cause for the present cases.
