Endocrine Abstracts

Congenital morphological thyroid abnormalities can be classified as hemiagenesis or total agenesis, lingual thyroid, substernal thyroid, thyroglossal ductus remnant. Hemiagenesis with absence of one lobe or lobe and isthmus is very rare, it was found in 4 of 7000 scans in one study. The left lobe is absent four times as often as the right lobe, and women are about three times more likely than men to have this developmental defect. Usually diagnosing this condition is not very ...