Physical and Radiological Findings Specific for Medullary Carcinoma of the Thyroid Gland

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Preoperative physical and radiological findings, if specific to a certain extent, are important for detecting patients with sporadic form of medullary thyroid carcinoma and especially for the first patient in the family having a hereditary form of medullary thyroid carcinoma and pheochromocytoma syndrome. To delineate clinical features of medullary thyroid carcinoma, a total of 9 patients with this tumor were reviewed retrospectively. In most patients, the thyroid lesions were located in the upper two thirds of the lobe, which was determined by careful palpation or <SUP>131</SUP>I scintiscanning of the thyroid. The primary lesion in the thyroid could be felt more or less as a round, sharply demarcated nodule with fairly good mobility. These findings suggested rather a benign thyroid nodule when there was no lymph node involvement. However, it could be considered a sign suggesting medullary thyroid carcinoma when accompanied by marked lymph node metastasis. In our recent 2 cases, the diagnosis of medullary thyroid carcinoma was strongly suspected on these clinical bases, one of the cases being presented in detail. In 4 patients, lymph node metastasis in the central neck extended to either submandibular or upper mediastinal regions or both. In about one third of the patients, calcified deposits were shown in the cervical roentgenograms. With the use of soft tissue roentgenography, grossly punctate calcific deposits associated with psammoma-like shadows were recognized and the pattern was a criterion for definitive diagnosis of medullary thyroid carcinoma.
社団法人日本内分泌学会の論文

Physical and Radiological Findings Specific for Medullary Carcinoma of the Thyroid Gland

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