A 80-year-old male with a significant smoking history that showed a large left lower lobe mass. Here is the resection:




What's your diagnosis?
A: Squamous cell carcinoma
B: Adenosquamous cell carcinoma
C: Atypical carcinoid
D: Large cell neuroendocrine carcinoma
Answer
Case credit: UCSD pathology
Author: Wangpan Jackson Shi, MD
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