Obligatory medical device diagnostics.
- Gastroduodenoscopy (colloquially, “gastroscopy”) with biopsies (tissue sampling) to detect Helicobacter pylori; if an ulcer (ulcer) is present, also take biopsies from the edge and base of the ulcer to rule out gastric carcinoma (stomach cancer):
- As basic diagnostics for suspected duodenal ulcer.
- 6-8 weeks after the end of eradication therapy (after complete elimination of the bacterium) of a Helicobacter-positive duodenal ulcer to ensure that the duodenal ulcer is not a gastric carcinoma (gastric cancer; approximately 4% of cases) (thus renewed gastroduodenoscopy and biopsy)
Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics and obligatory medical device diagnostics – for differential diagnostic clarification.
- Radiograph of the abdomen (radiographic abdomen; abdominal overview) – for suspected hollow organ perforation (gastric perforation/gastric perforation).
- Abdominal plain radiograph in the standing or left lateral position: evidence of hollow organ perforation due to free air under the diaphragm (diaphragm).
- Computed tomography (CT) of the abdomen (abdominal CT) – if complications of ventricular ulcer such as bleeding, perforation are suspected.