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NBME 18 Answers

nbme18/Block 2/Question#27

58 yo man, 4 years of recurrent cough and sputum

Pseudostratified columnar epithelial cells

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submitted by lae(0),

chronic bronchitis causes squamous metaplasia of the pseudostratified columnar epithelium in the bronchi and bronchioles

---- these columnar epithelium normally contribute to the mucociliary clearance and smoking also damages this clearance, so can get the clue from that too