Japanese Journal of Oral and Maxillofacial Surgery
Online ISSN : 2186-1579
Print ISSN : 0021-5163
ISSN-L : 0021-5163
Histochemical study of the masseter muscle
A case of hypertrophic masseter myopathy
Yoshimasa KITAGAWAKenji HASHIMOTOKenichi TOMITSUKATetsuji KAWAGUCHIKoji KINOShigetosi SHIODA
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1990 Volume 36 Issue 10 Pages 2346-2352

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Abstract

Hypertrophy of the masseter muscle is a relatively uncommon condition which may occur unilaterally or bilaterally. The etiology is unclear in most cases.
A case of unilateral masseteric hypertrophy in a 17-year-old girl was described. Histochemical study was performed and features of the masseter muscle were compatible with a myopathic disorder, uniform type 1 fiber and gross hypertrophy of type 1 fibers.
This disorder was termed branchial hypertrophic myopathy or hypertrophic masseter myopathy because it was confined to the masseter muscle.

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© Japanese Society of Oral and Maxillofacial Surgeons
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