def
a procedure in which an instrument with a camera is introduced into the body to view its internal parts
indications
1 symptoms suggestive of upper GI cancer -dysphagia -unexplained upper abdominal pain & weight loss -upper abdominal mass 2 patients with haematemesis +/meleana 3 persistent nausea + vomiting
complications
1 infection
2 perforation
3 bleeding