The flexible fiberoptic bronchoscope has continued to evolve since its introduction. The average adult bronchoscope has an external diameter of 4 to 6 mm and a typical viewing radius of 1200.The working channel for introduction of accessory instruments or suction is typically 1 to 3 mm in diameter. Ultrathin bronchoscopes for the evaluation of small distal airways are now available and have an external diameter of 2.7 mm. The source of data for the study was from the patients attending Department of respiratory medicine both out patients and in patients. Analysis of symptoms among patients, showed that cough was the most common symptom occurring in 45 patients (90%) and hemoptysis occurred in 10 patients (36%). Shortness of breath, fever and chest pain were seen in decreasing frequency in that order in 32 (64%) 30 (60%), 4(8%) respectively. With the use of Chi square test, we found that EBUS TBNA had sensitivity 88.88%, specificity 87.75%. Positive predictive value 57.11% and negative predictive value 97.72% for malignant cytology