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September 1973

Muscular Dystopia in the Facial Nerve Canal

Author Affiliations

Olomouc, Czechoslovakia
From the Clinic of Oto-rhino-laryngology and the Institute of Pathological Anatomy, Medical Faculty, Palacký University, Olomouc, Czechoslovakia.

Arch Otolaryngol. 1973;98(3):201-204. doi:10.1001/archotol.1973.00780020209014

The finding of a tumor consisting of striated muscles and fibrous connective tissue attached to the dorsal side of the facial nerve sheath located in the cavity of the pyramidal portion of the canalis facialis is described. The observation was made when the facial nerves of three patients were exposed during the surgical treatment for Bell's palsy.

The finding is interpreted as dystopy due to the deviation in the common development of the facial nerve and facial muscles. Other clinical aspects are pointed out.