Book excerpt: Pathological examination forms a key element in the final diagnosis of a variety of malignant and non-malignant respiratory disorders, and directs treatment. Research has contributed to important advances in the pathological diagnosis of these respiratory disorders. This book is a complete overview of diagnostic procedures and pathological examination data, which helps support the clinician in the decision-making process. This Monograph covers the pathology of neoplastic diseases, infections, obstructive and interstitial lung diseases, and pulmonary manifestations of systemic diseases, with al.