Stomach ulcer. Gastroscope (endoscope) view of a gastric (peptic) ulcer of a 53 year-old male patient. This ulcer (upper right) is situated at the entrance of the pylorus (opening),which marks the junction between the stomach and the small intestine (duodenum). Ulcers are caused by excessive stomach acid (digestive juice). This acid,often combined with excess alcohol and caffeine,attacks the stomach wall,causing pain and discomfort. If the wall's protective mucus becomes thinned,possibly due to mental stress or bacterial attack,the acid can perforate the stomach wall. A perforated ulcer can result in anaemia and vomiting blood (haematemesis) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / DAVID M. MARTIN, MD |
Bildgröße: | 3740 px × 3764 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |