 Enlarged glands in the chest mediastinal lymphadenopathy is a common problem and may have a variety of different causes. In the past an operation mediastinoscopy was required to diagnose the glands. Endobronchial ultrasound EBUS is a new procedure that may be able to diagnose these glands without the need for mediastinoscopy. The REMEDY trial aims to examine whether EBUS can reduce the number of mediastinoscopies and healthcare costs in patients with enlarged glands in the chest. 