村上 司¹, 村上 信夫¹, 野口 志郎¹, 野口 秋人¹, 太田 康幸²

Tsukasa MURAKAMI¹, Nobuo MURAKAMI¹, Shiro NOGUCHI¹, Akito NOGUCHI¹, Yasuyuki OHTA²

¹野口病院, ²愛媛大学医学部第三内科

¹Noguchi Thyroid Clinic and Hospital Foundation, ²Third Department of Internal Medicine, Ehime University School of Medicine

キーワード : Thyroid nodule, Ultrasonography, Papillary carcinoma, Follicular carcinoma

Three hundred and ten patients with solitary thyroid nodule were examined with ultrasonography. Then the findings were compared with pathological diagnosis. The shape and the size of nodules, the nature of the margin and the internal echo, and calcification were evaluated with interest. Comparing these ultrasonographic findings with pathological diagnosis, following conclusions were drawn;
1. The irregularly shaped, ill demarcated nodules and/or those with internal heterogeneous echo and/or calcification generally indicated papillary carcinomas.
2. Most part of papillary carcinomas can be differentiated from benign nodules ultrasonographically.
3. Follicular carcinomas are difficult to differentiate from benign nodules based on ultrasonographic findings.