[Esophageal ulcer].

Local esophageal ulcer was detected in 53 (0.56%) of 9493 patients who were examined endoscopically in view of different complaints of pains in the alimentary system. Ulcers detected in the patients were localized in the distal part of the esophagus in 52.83%, in its middle third in 35.85%, in its upper third in 11.31%. Macroscopically, ulcers were divided into focal (41.5%), squamous-infiltrative (32.2%) and deep (26.4%) types; their microscopic structure was investigated. In 56.7% they were combined with chronic gastritis. Squamous-infiltrative and deep types should be diagnostically differentiated from early cancer.