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Article
October 1989

A Comparative Study of the Fallopian Canal at the Meatal Foramen and Labyrinthine Segment in Young Children and Adults

Author Affiliations

Chapel Hill, NC

Arch Otolaryngol Head Neck Surg. 1989;115(10):1161. doi:10.1001/archotol.1989.01860340015006

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Abstract

At the meeting of the Southern Section of the Triological Society in Naples, Fla, Dr Susan A. Eicher, Baylor College of Medicine, Houston, Tex, presented a comparative study of the fallopian canal at the meatal foramen and labyrinthine segment in young children and adults. This was a cadaver study of 20 temporal bones from children under 2 years of age, compared with 20 temporal bones in adults. The ratio of facial nerve diameter to fallopian canal diameter at the labyrinthine portion was similar in both age groups. However, at the meatal foramen this ratio was significantly smaller in children than in adults. This implied that the facial nerve is not as tightly contained at the meatal foramen of the fallopian canal in the pediatric population and offers an explanation for the relative infrequency of Bell's palsy in children. Dr Eicher further studied the changes in size and orientation of the

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