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|Poll|June 17, 2011

Carcinoma of the Lung

A 63-year-old male with a 50 pack-year smoking history presents with shortness of breath, coughing, and blood-streaked sputum. A chest radiograph shows a large mass in the middle lobe of the right lung that is biopsied, and the H&E–stained slide is seen above. Click here to see the whole slide image.

Click here for the comparative pathology.

Your diagnosis is:

A. Non–small-cell lung cancer
B. Small-cell lung cancer
C. Adenocarcinoma
D. Neuroendocrine carcinoma

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