A 15 year old boy has had vomiting and diarrhoea for 2 days. He has developed increasing right iliac fossa pain which has suddenly increased and is colicky in nature.
An 18 year old man returns from a back packing trip. He has developed generalized abdominal pain, fever and vomited a couple of times. The junior doctor is concerned he has appendicitis and asks you to perform an ultrasound.