“…In our patients, 75.93% had normal endoscopy, and 4.17% with grade 1 were also eligible for early diagnosis, since none of these patients developed stricture on follow-up. This is in agreement with Rappert et al 9 In contrast to visible mouth and facial injury, which did not correspond to the internal finding of excessive salivation, refusal to eat always corresponds to esophageal injury, as we found in 30 (30.3%) of our patients. Three of our nine patients were cases of acid ingestion, involving concentrated vinegar and H 2 SO 4 (hydrogen sulfate), producing esophageal ulcers and only one patient with gastric ulcer, in contrast to what was reported by Chong et al, 10 where acid ingestion was more injurious to the stomach than the esophagus.…”