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Journal of Medical Ultrasonics

にて英文誌のFull textを閲覧することができます.


1985 - Vol.12

Vol.12 No.06

Original Article(原著)

(0478 - 0485)


Ultrasonography for the Localization of Parathyroid Tumors

藤本 武利1, 3, 中沢 英樹1, 高橋 総一郎1, 北村 隆信1, 小林 和生1, 秋山 洋1, 紫芝 良昌2

Taketoshi FUJIMOTO1, 3, Hideki NAKAZAWA1, Soichiro TAKAHASHI1, Takanobu KITAMURA1, Kazuo KOBAYASHI1, Hiroshi AKIYAMA1, Yoshimasa SHISHIBA2

1虎の門病院外科, 2虎の門病院内分泌代謝科, 3現:平塚胃腸病院外科

1Department of Surgery, Toranomon Hospital, 2Department of Endocrinology and Metabolism, Toranomon Hospital, 3Department of Surgery, Hiratsuka Gastroenterological Hospital

キーワード : Hyperparathyroidism, Ultrasonography, Computed tomography

 To determine the practical usefulness, the findings of ultrasonography (US) and that of computed tomography (CT) were compared with the surgical findings in 8 cases of hyperparathyroidism.
 US criteria for hyperfunctioning parathyroid gland are the following three findings: (cf. Fig. 1)
 (1) The lesion is a hypoechoic or cystic mass lesion.
 (2) The lesion is located at the dorsal side of the thyroid.
 (3) The lesion has a capsule together with the thyroid.
 In diagnosing hyperfunctioning parathyroid glands, US sensitivity was 62%, US specificity 100%, and US accuracy 84%. On the other hand, CT sensitivity was 46%, CT specificity 89%, and CT accuracy 72%. Diagnostic rate of US was superior to that of CT.
 Factors influencing preoperative localization of parathyroid tumors are weight, shape, and site. US could point out parathyroid tumor which weighed not less than 294 mg. Spherical or elliptical parathyroid tumor were easily detected. US could not reveal mediastinal parathyroid tumor.