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3890 Pathology

A 68 yr old woman with a repeated bouts of pneumonia and H/O heavy smoking presents with a 2-week history of fever and productive cough. A chest X-ray reveals a right lower lobe infiltrate and trans-bronchial biopsy confirms pneumonia and there occurs preneoplastic changes within the bronchial mucosa. Which of the following best characterizes the morphology of this bronchial mucosal lesion?

ACellular maturation shows abnormal pattern
BIncreased numbers of otherwise normal cells
CInvasiveness
Dpresence of poorly diiferentiated keratin producing cells
Pathology
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