Which of the following are major histopathologic types of lung cancer? 1. Adenocarcinoma 2. Squamous cell carcinoma 3. Small-cell carcinoma 4. Ciliated cell carcinoma
a. 2, 3, and 4 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 1 and 2 only
ANS: B
The non–small-cell cancer category consists of adenocarcinoma (including bronchoalveolar cell carcinoma), squamous cell carcinoma, large-cell carcinoma, and variants (Figure 31-4).
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