RESUMEN
Primary carcinoma of lung is a major health problem with a generally grim prognosis. Cytology is reliable and useful method in the diagnosis of bronchogenic carcinoma. However, an orderly approach to diagnosis, using a variety of cytologic diagnostic procedures helps us to separate benign and malignant lesions of lung and allows early diagnosis and cytologic typing of various pulmonary malignant lesions. That provides perspective selection of best therapy for individual patient. We have reached to a conclusion from the present study that multiple types of tissue sampling techniques including bronchial brushing, transbronchial needle aspiration [TBNA], CT-guided transcutaneous needle aspiration [TCNA] and bronchial biopsy should be performed since the diagnostic results improve when combination of techniques are employed