PULMONARY PLEOMORPHIC CARCINOMA WITH KRAS G12C MUTATION AND HIGH PD-L1 EXPRESSION: A CASE REPORT AND LITERATURE REVIEW
Pulmonary pleomorphic carcinoma (PPC) is a rare subtype of pulmonary sarcomatoid carcinoma (PSC) within the non-small cell lung cancer category, characterized by significant histological heterogeneity that complicates diagnosis. A 71-year-old male with a 55-pack-year smoking history and chronic obstructive pulmonary di...