Ultrasonographic evaluation of inflammatory changes in the masseter muscle

Eiichiro Ariji, Yoshiko Ariji, Kazunori Yoshiura, Shuichi Kimura, Yasufumi Horinouchi, Shigenobu Kanda

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


The ultrasonographic images of 32 patients with inflammatory change in the masseteric region were investigated to clarify the characteristic findings and to evaluate the utility of ultrasonography. Inflamed masseter muscles frequently demonstrated reduction of echo intensity and complete or partial absence of hyperechoic bands. The mean thickness of the masseter muscle on the unaffected side was 8.6 mm, whereas that on the affected side was 12.9 mm. Nine of 10 patients with heterogeneous hypoechoic area, but only 1 of 10 patients with homogeneous hypoechoic area, had received surgical treatment before ultrasonographic examination.

Original languageEnglish
Pages (from-to)797-801
Number of pages5
JournalOral Surgery, Oral Medicine, Oral Pathology
Issue number6
Publication statusPublished - Dec 1994

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Dentistry(all)


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