1. Introduction, 2. Speciment Types for Cytologic Evaluation, Collection Methods, Cytopreparation, and Staining, 3. Anatomy, Histology, and Cytology of Normal Components of the Lower Respiratory Tract, 4. Cytopathologic Changes in Non-neoplastic Conditions, 5. Classification of Lung Tumors, 6. Squamous Cell Carcinoma, 7. Adenocarcinoma, 8. Pulmonary Neuroendocrine Tumors, 9. Large Cell Undifferentiated Carcinoma, 10. Unusual and Uncommon Tumors and Tumor-like Lesions and Tracheal Lesions, 11. Lung Carcinoma Metastatic to other Body Sites, 12. Pulmonary Lymphoproliferative Disorders, 13. Metastatic Malignancy to the Lungs, 14. Pulmonary Cytopathology in Neo-Natal and Pediatric Age Group, 15. Pulmonary Cytopathology in Immunocompromised Patients.