Peripheral Pulmonary Emboli Detected by Radial Probe Endobronchial Ultrasound

To the Editor： Endobronchial ultrasound （EBUS） has been utilized as a useful noninvasive diagnostic tool for mediastinal lymph nodes or masses. Recently, convex probe EBUS （CP-EBUS） has recently come to be used to diagnose central pulmonary embolism.I However, CP-EBUS cannot detect peripheral pulnaonary embolism. It is here believed that the potential use of EBUS is still underestimated.