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Article
February 1952

SUPERNUMERARY MUSCLE OF MIDDLE EAR

Author Affiliations

NEW YORK
From the Otolaryngological Service and Department of Laboratories of Mount Sinai Hospital.

AMA Arch Otolaryngol. 1952;55(2):206-209. doi:10.1001/archotol.1952.00710010215011
Abstract

SUPERNUMERARY examination of histologic sections of the temporal bone. A thorough review of our collection of over 350 temporal bones cut serially disclosed the presence of such a muscle in only one instance. It was felt, therefore, that a report of this case was worth while. A brief review of the literature revealed that Schwabach1 in 1907 was the first to report a case in which an anomalous muscle of the middle ear was found. The patient was a deaf-mute of 44 who died of carcinoma of the ventricle. The small abnormal muscle, observed microscopically, was situated within the Fallopian canal near the knee of the facial nerve and was in no way connected with the tensor tympani or the stapedius muscle. Schwabach attempted to establish a causal relationship between this muscle and the deaf-mutism in his case. In 1930 Brock2 reviewed a microscopic series of 277 temporal

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