UWorld Endocrine Practice Test

Hashimoto's thyroiditis is an autoimmune condition characterized by hypothyroidism and the presence of a goiter. In this disorder, the body's immune system mistakenly attacks the thyroid gland, leading to damage and reduced production of thyroid hormones. This often results in an enlarged thyroid gland, or goiter, due to inflammation and the body’s attempts to compensate for lower hormone levels. Patients with Hashimoto's thyroiditis may experience various symptoms related to hypothyroidism, such as fatigue, weight gain, cold intolerance, and depression, along with visible swelling in the neck from the goiter. The progressive nature of the disease means that thyroid hormone levels typically decline over time, necessitating the need for lifelong thyroid hormone replacement therapy. In contrast, the other conditions listed do not fit the criteria of hypothyroidism with goiter in the same way. Graves' disease typically results in hyperthyroidism and is associated with a different presentation. Cretinism generally refers to severe hypothyroidism occurring in infancy or early childhood, often due to iodine deficiency, and it is not characterized by goiter in the same context as Hashimoto's. Thyroid storm is an acute and severe exacerbation of hyperthyroidism and does not align with hypothyroidism or go