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To the Editor.—S. Nakamura and I. Sando describe (Archives of Otolaryngology, 84:131, 1966) three cases of congenital absence of the stapes and oval window and in two the round window was also absent. The pinnae were unduly small in two cases and in one there was microtia with atresia of the external auditory canal. These cases were explored surgically but no corrective surgery was carried out. However, in one case it was proposed to carry out fenestration of the external semicircular canal later. It may be helpful to point out that when the round window is present but there is no stapes and no oval window, or only a rudimentary oval window—in which case the long process of the incus is commonly shorter than usual and the horizontal part of the facial nerve lies farther forward and downward than usual and may be bare of bone—a better hearing result
HARPMAN JA. ABSENCE OF STAPES AND OVAL WINDOW. Arch Otolaryngol. 1968;87(1):109. doi:10.1001/archotol.1968.00760060111022
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