Anatomy, histology and cytology of respiratory tract; physiology and inflammatory reaction of respiratory tract; preparation of specimen; morphological variations in non-malignant disease: upper respiratory secretion, histiocytes, bronchial epithelium, proliferative bronchiolitis, desquamative interstitial pneumonia, (idiopathic) interstitial fibrosis, cryptogenic fibrosing alveolitis; specific cytological appearances in benign disorders: bronchial asthma, granulomatous lesions, viral infections; non-cellular elements; infections; squamous metaplasia and carcinoma-in-situ; squamous cell (epidermoid) carcinoma; small cell (oat cell) carcinoma; adenocarcinoma; bronchiolo-alveolar carcinoma (alveolar cell carcinoma); large cell and undifferentiated carcinoma; metastatic tumours; lymphomas and allied disorders; benign lung tumours.