Alaska's Western Arctic Caribou herd forms aggregations or groups that can stretch for miles. The herd is on a three-year census schedule. The Department attempted a census during July 2002 but high wind, snow and fog forced a one-year delay. Weather almost prevented the 2003 attempt as well.
Finally, thyroid cancer may also be detected as a cause of an enlarged thyroid gland. It is quite clear that enlargement of the thyroid or the presence of nodules within the thyroid is common, particularly as revealed when sensitive imaging techniques such as ultrasound are used.
There are two conditions that cause goiter: (i) the thyroid gland producing too much hormones -- hyperthyroidism; or (ii) thyroid gland producing too less hormones -- hypothyroidism. There are different types of goiter -- simple, hereditary, and those occurring due to different causes. Complete or partial removal of thyroid gland is called goiter surgery, mostly known as thyroidectomy. The enlarged thyroid gland that presses the other structures of the throat is removed in the surgery. This is a very simple and safe procedure carried out under anesthesia.