Diagnosis and surgical treatment of small papillary carcinomas of the thyroid gland

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Abstract
The preoperative and pathological findings of 38 cases of small papillary carcinoma of the thyroid gland measuring ⩽10 mm in diameter and 74 cases of large papillary carcinoma measuring more than 10 mm were compared. In the small carcinoma cases, the sensitivity of palpation, ultrasonography, and fine‐needle aspiration biopsy (FNAB) was higher than that of computed tomography and soft tissue roentgenography of the neck. Therefore, palpation, US, and FNAB should be instituted as reliable diagnostic methods, but other examinations seem unsuitable as methods for preoperative qualitative diagnosis. No definite correlation was found between the intraglandular dissemination and the size of the carcinoma, and the frequency of metastasis was relatively high even in the small carcinoma cases. If the patient elects to undergo surgery, subtotal thyroidectomy with lymph node dissection should be performed for small thyroid carcinomas as well as large carcinomas.