Evaluation of Ultrasonography for Detecting Thyroid Lesions: Review of 632 Cases.

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  • 甲状腺超音波検査６３２症例の検討
  • コウジョウセン チョウオンパ ケンサ 632 ショウレイ ノ ケントウ

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We reviewed 632 cases which had undergone ultrasonograpy for thyroid disorders.(1) The sonographic examination found nodular lesions in 157 cases (including 52 solid tumor cases) and diffuse enlargement in 38 cases. No abnormalities were found in the remaining437 cases.(2) Further examination revealed that the cases of nodular lesions included 7 thyroid cancer cases (6 papillary carcinomas and 1 follicular carcinoma), 2 cases of hyperthyroidism, and 3 cases of hypothyroidism.(3) Diffuse enlargement cases included 5 cases of overactive thyroid (1 subacute thyroiditis and 5 Graves' diseases), 2 cases of underactive thyroid (chronic thyroiditis). Assays for antithyroid autoantibodies showed positive results even in the 31 cases of normal thyroid function.(4) Four in 7 cases diagnosed as thyroid cancer and 5 in 12 cases diagnosed as thyroid dysfunction (4 of 5 cases were elderly people 60 years of age or over) were screened by ultrasonography.<BR>We concluded that ultrasonography is a valuable diagnostic procedure for early detection of not only thyroid malignancies but also disordered thyroid function. Abdominal sonography is often used for screening. The use of ultrasound for the thyroid gland is recommended as a standard procedure in the regular health screening program.

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