Thyroid Disorders USMLE Step 1 Practice Question
A 34-year-old woman presents with palpitations, heat intolerance, and a 4-kg weight loss over 2 months. She has a diffuse thyroid enlargement without tenderness. Laboratory studies show suppressed TSH and elevated free T4. A thyroid uptake scan demonstrates uniform increased uptake. Which of the following is the most likely diagnosis?
Answer choices
- AIodine-induced hyperthyroidism
- BTSH-secreting pituitary adenoma
- CThyroiditis with thyroid hormone release
- DGraves diseaseCorrect answer
- EToxic multinodular goiter
- FGestational trophoblastic disease with human chorionic gonadotropin-mediated thyroid stimulation
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