Editing Meckel's diverticula (section)

== Presentation ==

* Mostly benign and incidentally discovered during autopsy, laparotomy or barium study
* Bleeding - most common presentation
** Can be acute massive bleed, anaemia secondary to occult bleed, or a self-limited recurrent episodic event
** Usual source of bleeding is a chronic acid-induced ulcer in the ileum adjacent to a Meckel diverticulum that contains gastric mucosa
* Obstruction is also common
** Can result from volvulus of small bowel, intussusception, or rarely incarceration of diverticulum in an inguinal hernia (Littre hernia)
** Should resect in all cases
* Diverticulitis (10-20% of symptomatic presentations)
** More common in adults - clinically indistinguishable from appendicitis
** Can lead to perforation
** Should always look for a Meckel's when the appendix is found to be normal
* Neoplasms
** NET (77%)
** Adenocarcinoma (11%)
** GIST (10%)
** Lymphoma (1%)