[Morphology of the lower esophagus after endoscopic varicosclerosation (author's transl)].

Submucous injection of 5 p.c. phenol in arachis oil in the lower esophagus can stop a bleeding from esophageal piles without considerable complications. Microscopical examinations on 14 human esophageal specimens demonstrate that phenol in oil as opposed to other sclerosing solutions produces only a mild, bland running inflammation in the tissue. Deep mucosal ulcerations, perforations of the wall, phlegmonous inflammations or mediastinitis could be observed. Nevertheless, under the intact esophageal mucosa a sufficient production of collagen fibres develops, which is effecting a varicosclerosation.