It is peculiar compared to other forms of trypanosomiasis, the thyroid gland being at times much enlarged (goitre-like).
These include patients operated on for acute appendicitis, acute cholecystitis, hernia or non-toxic goitre.
In patients with multinodular goitre, t he usual form of hyperthyroidism in later life, the estimated rate of progression from sub-clinical to clinical hyperthyroidism is 5% each year.
The one exception relates to the prevalence of goitre, which is traceable to lack of iodine.
Six different varieties of goitre are internationally recognised.
In line 7 from the foot of the column, the word "goitre"should be deleted and replaced by"hyperthyroidism".
For instance, in goitre areas to-day half the vegetables that are eaten by the citizens are grown outside the district.
From about 1900 the local salt was increasingly refined, and goitre started to increase to a high level until iodisation was begun in 1924.
