What Is Toxic Nodular Goiter?
Toxic nodular goiter refers to an enlarged thyroid gland, or goiter, that contains multiple nodules that hypersecrete thyroid hormone. Hypersecretion of thyroid hormone causes hyperthyroidism. Toxic nodular goiters occur commonly in the elderly and usually arise from long-present goiter. Symptoms of toxic nodular goiter may include weight loss, nervousness, anxiety, high blood pressure, increased appetite, increased perspiration, fatigue, frequent bowel movements, muscle cramping, and menstrual irregularities.