A 56-Year-Old Man Comes to the Office After 2 Episodes

question 657

Multiple Choice

A 56-year-old man comes to the office after 2 episodes of low-volume hemoptysis.  He describes it as "streaks of blood" in his sputum.  The patient has had a chronic cough over the last several years, most prominently in the morning.  He has also had several recent respiratory infections.  The patient has smoked a pack of cigarettes daily for the last 40 years.  Chest x-ray shows hyperinflated lungs but no infiltrates or masses.  Bronchoscopy is performed and several suspicious foci of bronchial mucosa are biopsied.  Microscopy of the biopsy sample reveals areas of stratified squamous epithelium.  The pathogenesis of this patient's microscopic findings is most similar to which of the following conditions?

• A)Barrett esophagus
• B)Cervical cancer
• C)Hypertrophic cardiomyopathy
• D)Interstitial cystitis
• E)Minimal change disease

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Definitions:

Diversity

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