What cell type would most likely be discovered on biopsy of an apical lung mass in a patient with chronic smoking history and destruction of the adjacent first and second ribs?

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A lung mass in a patient with a chronic smoking history is most likely to be a lung cancer. Squamous cell carcinoma is strongly associated with smoking and is the most common type of lung cancer. Destruction of adjacent ribs suggests local invasion of tumor, which is characteristic of squamous cell carcinoma. Adenocarcinoma is more commonly associated with non-smokers, and small cell and large cell carcinomas are usually not associated with destruction of adjacent structures.

What Cell Type Would Most Likely Be Discovered on Biopsy