L-arginine-induced esophagitis, report of six cases.

Background: Drug-induced esophagitis is an uncommon diagnosis in the pediatric population. The following is a report of six adolescents with L-arginine-induced esophagitis.

Case Reports: All patients were under treatment with L-arginine for short stature.

[Food protein-induced enterocolitis syndrome. A case report].

Background: Food protein-induced enterocolitis syndrome or FPIES is a rare, not-IgE-mediated food allergy. The predominant feature is vomit from one to four hours after consuming the causal food.

Clinical Case: An 8-month-old boy, with no family history of allergy, with a personal pathological history of allergy to cow's milk protein.

[Juvenile polyposis in Mexican children].

Background: Juvenile polyposis (JP) is a frequent cause of lower gastrointestinal bleeding. It is present in 3-4% of the population < 21 years of age and represents 90% of all polyps in childhood. The most common complaints are hematoquezia, abdominal pain, and polyp prolapse.