I have added some really nice sonographic images of the thyroid in my ultrasound image gallery.
See: http://www.ultrasound-images.com/thyroid.htm Among the cases (and ultrasound pictures) I have discussed here are: 1) multinodular goitre 2) Hashimoto's thyroiditis 3) thyrotoxicosis 4) hemithyroidectomy 5) sublingual thyroid. The last is a rare enitity and I have added 6 high res. images of this lesion.
Hashimoto's thyroiditis is a common condition that afflicts a large percentage of the populace here in S. India.