Histology USMLE Step 1 Practice Question
A 61-year-old woman with a positive fecal occult blood test undergoes colonoscopy. Vital signs are BP 128/82 mmHg, HR 76/min, RR 14/min, and temperature 37°C. Hemoglobin is 10.2 g/dL. Normal-appearing mucosa from the descending colon is biopsied; no masses or ulcerations are visualized. She denies recent antibiotic use. Which histologic features are most likely present in this normal colonic tissue?
Answer choices
- APseudostratified ciliated columnar epithelium
- BNonkeratinized stratified squamous epithelium
- CNumerous straight crypts and abundant goblet cellsCorrect answer
- DFingerlike villi with Paneth cells at the base
- ESubmucosal mucous glands and villi
- FBranched crypts with scattered Paneth cells at the base
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