Histological Classification and Its Need for Treatment of Lung Cancer -- Advances in Non-surgical Sampling Techniques for the Diagnosis and Staging of Lung Cancer -- Adequacy and Tissue Preservation of Small Biopsy and Cytology Specimens -- Optimization and Triage of Small Specimens -- Ancillary Immunohistochemical Techniques for the Subclassification of Non-small Cell Lung Cancer -- Adequacy and Utilization of Small Biopsy Material for Molecular Diagnosis -- Role of Immunohistochemistry in the Detection of Targetable Mutations -- New Discoveries for the Treatment of Lung Cancer and the Role of Small Biopsy Material -- Evaluation of Small Biopsy Material in Patients with Multiple and Secondary Tumors -- Common Benign Mimickers of Lung Carcinoma in Cytology and Small Biopsy Specimens.