Answer: D - Thyroid storm is not associated with hypothyroidism. Signs and symptoms of hypothyroidism include lethargy, low body temperature, enlarged tongue and lips, dry and coarse skin, swelling of all body parts, failed tooth eruption, and malformed teeth. In adults, hypothyroidism is often caused by an autoimmune destruction of the thyroid gland or Hashimoto's thyroiditis. In infants, the condition is called cretinism. Treatment is thyroid replacement therapy. Infants with cretinism must be treated quickly to avoid damage to the central nervous system.