Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics, and obligatory medical device diagnostics – for differential diagnostic clarification.
- Abdominal sonography (ultrasound examination of abdominal organs) – for basic diagnostics.
- Colonoscopy (colonoscopy) – to exclude tumors.
- Gastroscopy (gastroscopy) – to exclude tumors.
- Computed tomography (CT; sectional imaging procedure (X-ray images from different directions with computer-based evaluation)), particularly well suited for imaging the abdomen.
