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Journal of Medical Ultrasonics

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1998 - Vol.25

Vol.25 No.05

Case Report(症例報告)

(0637 - 0640)

Schwannoma of the Psoas Muscle: A Case Report and Review of the Literature

Makoto NIIZAWA1, Hideaki ISHIDA1, 2, Tomoya KOMATSUDA1, 2, Tsukasa YOSHIDA1, Toshio NAGANUMA1, Akira ZENIYA1, Tomoyuki KURAMITSU1, Osamu MASAMUNE2

1Second Division of Internal Medicine, Akita City Hospital, 2First Department of Internal Medicine, Akita University School of Medicine

キーワード : CT, Psoas, Schwannoma, Ultrasound, Ultrasonic transcutaneous measurement

We report a case of asymptomatic schwannoma of the right psoas muscle, incidentally detected by ultrasound (US). Sonographically, the lesion was composed of a central cystic area and a surrounded by a solid layer corresponding to the macroscopic findings. Although schwannoma is a rare disease, the possibility of schwannoma must be kept in mind when US detects a round mass containing a central cystic area.