21. Differential diagnosis are ectopic thyroid, enlarged lymph nodes, dermoid cysts and goiter . 22. TNG is caused by a toxic multinodular goiter . 23. Such deficiencies lead to goiter , nervous system damage, growth retardation, and cretinism. 24. Just 10 percent visible goiter is enough to signal a serious deficiency, she said. 25. It was a shock to see so many goiters and nothing happening to remedy it. 26. A huge goiter grew on her neck. 27. China first added iodine to salt as an anti-goiter measure in the 1960s. 28. The incidence of fetal goiter after PTU treatment in reported cases is approximately 12 %. 29. These chemicals treated goiter , and people came from far and wide to see him. 30. This treatment option usually is done when overproduction of TM is caused by multinodular goiters .