The development of CT scanning has been beneficial for clinical medicine. In this case, virtual bronchoscopy (VB) was of clinical benefit. A 71-year-old woman with suspected lung cancer in the upper left lobe remained undiagnosed after investigation at another hospital. VB was used to confirm the location of the tumour, which facilitated an appropriate trans-bronchial lung biopsy being performed. The volume-rendering technique yielded information regarding an arterial anomaly, allowing high-quality and safe medical treatment to be provided. VB assists navigation in bronchoscopy, and the volume-rendering technique is effective in finding congenital anomalies of the vessels during preoperative assessment.