A 66-Year-Old Man Is Brought to the Office by His

A 66-year-old man is brought to the office by his daughter for medical evaluation.  The patient reports no chronic medical conditions but has not seen a physician for many years.  He takes no medications.  The patient is a retired veteran and recently relocated to live closer to his daughter.  He is an ex-smoker and does not use alcohol or illicit drugs.  Oxygen saturation on room air is 98%.  On physical examination, normal breath sounds are heard throughout both lungs.  Hand examination findings are shown in the exhibit.  The patient's hand findings are most suggestive of which of the following underlying conditions?

A) Chronic bronchitis
B) Chronic kidney disease
C) Iron deficiency anemia
D) Lung cancer
E) Plaque psoriasis

Correct Answer:

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