Question

1. which of the following conditions often results in a goiter?

acromegaly
hypothyroidism
exophthalmos
graves disease

Explanation:

Graves disease is an autoimmune disorder that affects the thyroid gland. In Graves disease, the immune system produces antibodies that stimulate the thyroid to produce excessive amounts of thyroid hormones (hyperthyroidism). One of the common manifestations of Graves disease is the development of a goiter (enlargement of the thyroid gland). Acromegaly is a disorder due to excessive growth hormone production (usually from a pituitary tumor) and is not related to thyroid - gland - induced goiter. Hypothyroidism is a condition of low thyroid hormone production. While in some cases of hypothyroidism (especially in regions with iodine deficiency), a goiter can occur (as the thyroid tries to produce more hormones by enlarging), but Graves disease is more specifically associated with a hyperthyroid state and a goiter. Exophthalmos (protrusion of the eyes) is a symptom often seen in Graves disease but is not the condition that causes the goiter. The key here is that Graves disease, due to the autoimmune stimulation of the thyroid, leads to thyroid hyperplasia (growth) and thus a goiter.

Answer:

Graves disease