Doctors listen for air movement and abnormal lung sounds (rales, wheezes, rhonchi) which can indicate a disease or problem in the lungs.
GoiterGoiter - enlarged thyroid is an enlargement of the thyroid gland. The gland can be generally enlarged or have multiple growths (nodules) leading to enlargement of the whole thyroid gland. The latter is termed multinodular goiter (MNGMNG - Multinodular goiter; enlarged thyroid that contains multiple nodules). There are two forms of multinodular goiter: 1) nontoxic MNGNontoxic MNG - multinodular goiter that produces normal levels of thyroid hormone and 2) toxic MNG.
A thyroid scan can show the size, shape, and location of the thyroid gland . It can also find areas of the thyroid gland that are overactive or underactive. The camera takes pictures of the thyroid gland from three different angles. The radioactive tracer used in this test is either iodine or technetium.