Congenital Lesions of the Inner Ear, Demonstrated by Tomography: A Retrospective Study of 34 Cases With Special Reference to the Lateral Semicircular Canal

One hundred fifty-seven patients with congenital ear lesions of the external and middle ears were studied by tomography. The tomograms showed that 34 of these patients had additional deformities of the inner ear. Many of these deformities, and especially those of the inner ear, could be attributed to thalidomide. The commonest inner ear lesion was a short wide lateral semicircular canal, the cause for which has been discussed embryologically.