Histology USMLE Step 1 Practice Question
A 36-year-old woman presents with a palpable thyroid nodule discovered on routine examination. Vital signs are normal (BP 118/76 mmHg, HR 72 bpm, RR 16, Temp 37°C). TSH is normal at 1.2 mIU/L. Fine needle aspiration cytology is nondiagnostic. Hemithyroidectomy is performed. Histologic examination of normal thyroid tissue adjacent to the nodule would most likely demonstrate which of the following features?
Answer choices
- ATubuloacinar glands with centroacinar cells
- BCords of chief cells without follicles
- CColloid-filled follicles lined by simple cuboidal epitheliumCorrect answer
- DPseudostratified ciliated columnar epithelium
- EStratified squamous epithelium with keratin
- FNests of parafollicular cells containing abundant mitochondria
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