Imaging tests are one of the most effective methods of a diagnosis. In a non-invasive way, they allow you to view what is happening inside the body. In what case is an ultrasound helpful? How can you prepare for an ultrasound?
A colonoscopy is a procedure that enables a doctor to view the large intestine (rectum and colon) from the inside, using a flexible cable equipped with a camera - a colonoscope.
Gastroscopy - and more specifically esophagogastroduodenoscopy (EGD) - is an endoscopic (i.e. inside the body) examination of the upper gastrointestinal tract, which allows for the assessment of the esophageal mucosa, stomach and proximal duodenal segment, and, if necessary, performing procedures in this area.