[Inappropriate use of antibiotics in acute appendicitis. A survey of Mexican surgeons].

Background: Appendectomy is the most common non-elective surgery. The postoperative use of antibiotics depends on the stage of the appendix at the time of surgery. Several classifications establish that state.

[Intestinal trichobezoar as a cause of small bowel obstruction. Case report and review of the literature].

Background: The trichobezoars are conglomerates of hair ingested by a person. They are located in the stomach, although they can extend also to the small bowel. They are common in children and adolescents, and 90% of the patients are women.