|Poll|April 10, 2015

Upper Lobe Lung Mass Found in 76-Year-Old Man

A 76-year-old man is found to have a right upper lobe mass. After further evaluation, a biopsy is performed. What is your diagnosis?

A 76-year-old man is found to have a right upper lobe mass. According to the histopathology image below, what is your diagnosis?

What is your diagnosis?

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