Prof. Wolfram T. Knoefel, Clinic and Department of General, Visceral and Paediatric Surgery, Düsseldorf University Hospital
Malignant tumours of the digestive tract, thyroid and lungs – There has been a rise in cancers of the digestive tract over the past five decades. The main cause is our stressful lifestyle, characterised by an unhealthy diet, insufficient exercise and harmful factors such as smoking. Cancers of the oesophagus, stomach and colon, for example, prove particularly difficult to treat.