Obligatory medical device diagnostics.
- Gastroscopy (gastroscopy) – as a basic diagnostic test when ulceration is suspected.
- Abdominal sonography (ultrasound examination of the abdominal organs).
- Endosonography (endoscopic ultrasound (EUS); ultrasound examination performed from the inside, i.e., the ultrasound probe is brought into direct contact with the internal surface (for example, the mucosa of the stomach) by means of an endoscope (optical instrument)).
- Magnetic resonance imaging (abdominal MRI; computer-assisted cross-sectional imaging (using magnetic fields, that is, without X-rays)); particularly suitable in the search for tumors.
- Computed tomography (CT) of the abdomen (abdominal CT; sectional imaging procedure (X-ray images from different directions with computer-based evaluation)) – tumors can be well represented.
Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics and obligatory medical device diagnostics – for differential diagnostic clarification.
- Octreoscan (octreotide scintigraphy; nuclear medicine method) – for detection of gastrinomas.
- Positron emission tomography (PET)
- Angiography (imaging of blood vessels by contrast medium in an X-ray examination).
