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Thyroid angiography was performed in 30 patients for suspected carcinoma.
Selective catheterization of the thyroid arteries by the percutaneous transfemoral approach was attempted in all and was achieved in 60 per cent of the cases. In the others, semiselective injection of the contrast medium into the subclavian or external carotid artery was performed.
The tumor diameter generally ranged from 1.5 to over 8 cm.
In 53.3 per cent of the cases the investigation was noncontributory or inconclusive, and the plain roentgen signs of malignancy had a low specificity.
Confidence in thyroid angiography for the purpose of differentiating benign and malignant tumors would seem to be misplaced.
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