Lung Cancer - Clinical Medicine

Explore the comprehensive pathophysiology, diagnosis, and treatment of lung cancer in this detailed medical lecture covering both non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). Learn about the essential risk factors including tobacco exposure, environmental carcinogens, and genetic predispositions that contribute to lung cancer development. Examine the distinct histologic classifications including adenocarcinoma, squamous cell carcinoma, large cell carcinoma, and small cell carcinoma, with emphasis on their unique characteristics, anatomical locations within the lung, and typical clinical presentations. Understand the compressive effects of lung tumors and discover how paraneoplastic syndromes such as SIADH, Cushing syndrome, and Lambert-Eaton myasthenic syndrome commonly present with SCLC. Master the diagnostic approach utilizing imaging modalities including chest X-ray, CT, and PET scans, along with biopsy techniques and molecular testing for driver mutations like EGFR, ALK, and ROS1 that guide targeted therapies. Study the TNM staging system for NSCLC and limited/extensive staging for SCLC, and explore corresponding treatment approaches including surgery, chemotherapy, radiation, immunotherapy, and targeted agents based on tumor type and disease progression patterns.