Thyroid Cyst (Ult)	

Fig. 16.18a Longitudinal ultrasound scan of thyroid lobes. A thyroid cyst. The right lobe of the thyroid is shown. The anechoic area in the lower pole and the increased through-transmission of sound behind it are characteristic of a simple thyroid cyst.

See also:
• The Thyroid Gland
• Investigation of Malignant Thyroid Tumours.