Histology USMLE Step 1 Practice Question
A 38-year-old man undergoing vasectomy for permanent contraception has a resected specimen showing a thick-walled tube with a small stellate lumen. Vital signs are stable (BP 118/76, HR 72, RR 14). Histologic examination reveals smooth muscle bundles in the tunica muscularis and pseudostratified columnar epithelium. There is no evidence of malignancy. Which of the following additional histologic findings is most likely present in this structure?
Answer choices
- APseudostratified epithelium with stereocilia and a prominent muscular wallCorrect answer
- BAbundant cartilage plates in the wall
- CStratified germ cells surrounding a central lumen
- DTransitional epithelium and detrusor muscle
- ESimple columnar ciliated epithelium with complex mucosal folds
- FCuboidal epithelium with mucus-secreting goblet cells and a thin muscular wall
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