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英文誌(2004-)

Journal of Medical Ultrasonics

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1991 - Vol.18

Vol.18 No.06

Original Article(原著)

(0626 - 0633)

甲状腺好酸性細胞腫瘍の超音波断層像

Ultrasonography of Oxyphilic Cell Tumors in the Thyroid

長倉 穂積1, 川内 章裕2, 伴 良雄1, 森田 嘉生1, 海原 正宏1, 原 秀雄1, 福成 信博2, 九島 健二1, 谷山 松雄1, 神谷 憲太郎2, 伊藤 国彦3, 片桐 敬1

Hozumi NAGAKURA1, Akihiro KAWAUCHI2, Yoshio BAN1, Yoshio MORITA1, Masahiro KAIHARA1, Hideo HARA1, Nobuhiro FUKUNARI2, Kenji KUSHIMA1, Matsuo TANIYAMA1, Kentarou KAMIYA2, Kunihiko ITOH3, Takashi KATAGIRI1

1昭和大学第三内科, 2昭和大学外科, 3伊藤病院

1The Third Department of Internal Medicine Showa University School of Medicine, 2The Department of Surgery Showa University School of Medicine, 3Itoh Hospital

キーワード : Oxyphilic cell tumors, Ultrasonography, Thyroid neoplasm, Tissue characterization

Oxyphilic cell tumors in the thyroid, a component of follicular tumors, are of varying malignancy, and it is hard to distinguish malignant from benign tumors before operation. Therefore diagnosis of oxyphilic cell tumors before operating is helpful. However this diagnosis is difficult except through cytology. We retrospectively examined ultrasonic findings in 15 patients with oxyphilic cell adenoma and 8 patients with oxyphilic cell carcinoma who were diagnosed histologically. Ultrasonic examination was performed with high resolution equipment using a 7.5 MHz mechanical arch scanner.
The characteristic findings of oxyphilic cell tumors on ultrasonography were hypoecho of the internal echo and a marginal hypoechoic tendency. The rate of occurrence of these findings in oxyphilic cell tumors was significantly higher than in other follicular adenoma. But we couldn't distinguish oxyphilic cell adenoma from carcinoma, because their shapes were uniform, and calcification and invasive findings were rarely found in carcinoma.
We suggest that ultrasonic examination is only helpful to distinguish oxyphilic cell tumors from other follicular adenoma.