[Angiodynography of circumscribed thyroid changes]

Conventional methods of thyroid diagnosis, such as scintigraphy, differentiate between hot and cold areas, but within cold areas no distinction between malignant and benign changes is possible. Angiodynography provides a new method which gives the usual sonographic information and also indicated variations in blood-flow in the organ. Various diagnostic methods--thyroid scintigraphy, conventional sonography, fine-needle biopsy and angiodynography--have been compared in patients with focal thyroid disease. It has been shown that it is possible to differentiate between malignant and benign lesions on the basis of their vascularisation.