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.
1 Often, solid components are mixed with fluid in thyroid cysts. 2  Cysts are usually benign, but they occasionally contain malignant solid components. 3  Chronic inflammation of the thyroid (thyroiditis). 4  Hashimoto's disease, a thyroid disorder, can cause thyroid inflammation resulting in nodular enlargement. Goiter is a term used to describe any enlargement of the thyroid gland, which can be caused by iodine deficiency or a thyroid disorder. 2  A multinodular goiter contains multiple distinct nodules within the goiter, but its cause is less clear. 3  Thyroid cancer.