Thyroid Disorders USMLE Step 1 Practice Question
A 33-year-old woman with a history of therapeutic neck radiation in childhood presents with a painless thyroid nodule. Vital signs are stable: BP 118/76, HR 82, RR 16, Temp 37°C, SpO2 98%. TSH is normal at 1.2 mIU/L. Fine needle aspiration cytology demonstrates cells with optically empty nuclei, nuclear grooves, and psammoma bodies. There is no cervical lymphadenopathy. What is the most likely diagnosis?
Answer choices
- AAnaplastic thyroid carcinoma
- BMedullary thyroid carcinoma
- CFollicular thyroid carcinoma
- DHashimoto thyroiditis
- EPapillary thyroid carcinomaCorrect answer
- FThyroid lymphoma
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