Thread: a 30-year x 2 pack/day history of cigarette smoking undergoes bronchoscopy
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Talking Re: Clinical MCQs 20 - 06-07-2006, 08:16 AM
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Originally Posted by Oak
A 57-year-old woman with a 30-year x 2 pack/day history of cigarette smoking undergoes bronchoscopy. Biopsy of bronchial tissue shows replacement of the normal pseudostratified ciliated columnar epithelium with stratified squamous epithelium. This change represents:
A. dysplasia
B. hyperplasia
C. malignant transformation
D. metaplasia
E. necrosis and repair
D. Metaplasia ho ni
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