Handling and interpretation of lung biopsies -- Acute lung injury patterns: diffuse alveolar damage and bronchiolitis obliterans-organizing pneumonia -- Idiopathic interstitial pneumonia -- Pathology of drug-induced lung disease -- Pneumoconiosis -- Immunologic lung disease -- Systemic diseases involving the lung -- Pulmonary vasculitis -- Primary lymphoid lung lesions -- Infection I. unusual pneumonias -- Infection II. granulomatous infections -- Lung involvement in the acquired immunodeficiency syndrome (AIDS) -- Pulmonary hypertension and other vascular disorders -- Pediatric disorders -- Miscellaneous I. specific diseases of uncertain etiology -- Miscellaneous II. nonspecific inflammatory and destructive diseases -- Transbronchial lung biopsy.