|Poll|May 15, 2014 (Updated: November 11, 2020)

43-Year-Old Man Presents With a Skin Lesion & Lung Mass

A 43-year-old man presents with a dark, irregular lesion on his back. Further work up reveals the presence of a mass in the right upper lobe in his lung. Sections of the skin and lung lesions are shown, respectively. What is your diagnosis?

What is your diagnosis?

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