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You have had markers for radiotherapy inserted into your bronchi or into your lung tissue.

Air is breathed in via the mouth or nose. From there the air goes to the windpipe via the larynx. At the end of the windpipe are two bronchial tubes (or bronchi) branching away from it. The bronchial tubes run into the lungs. What is more, the bronchial tubes divide into even smaller branches. The larynx, windpipe, bronchia and lungs are part of the lower airways.

You had a thoracoscopy. A bronchoscopy first involves making a small incision in the skin. A tube with a camera is pushed through this incision. This camera sends pictures of the inside of the body to a screen. Instruments such as forceps and scissors can be inserted through other small incisions in the chest.

You are going to have radiotherapy treatment on certain parts of your lungs. For this purpose, some locations have been marked before the radiotherapy. The markers were inserted into you during the thoracoscopy.