[Endoscopy in the evaluation of rare forms of gastric ulcers].

The endoscopic examination made in 49309 patients with long standing "gastritis" history has revealed 1476 patients (2.99%) with ulcers of gastric localization. The diagnosis of ulcer disease of the stomach had been previously established only in 17.5% of them. The analysis performed has revealed atypical rare forms of gastric ulcers: by their localization (proximal, ring of the pylorus or the prepyloric portion), by the size (giant), by the amount (multiple), by typological features (associated or secondary forms). Detailed characteristic of the ulcers mentioned is given.