Atresia of the pinna and external canal
||Absence or partial maldevelopment of the pinna is frequently associated with abnormalities of the external auditory canal and underlying middle ear; the inner ear in these patients is usually normal.
In this patient, the inferior half of the conchal bowl is not fully developed, giving the ear a feline appearance.
The small pit seen in the concha ended blindly a short distance medially.
This failure in the development of the external auditory meatus was associated with a deformity of the middle ear and ossicles.