A radiological scan of the gastric mucosa that is used to detect ectopic gastric mucosa in Meckel's diverticulum.

Meckel's diverticulum is an outpouching of the small bowel. About one in every fifty people has a Meckel's diverticulum. It is usually located about two feet before the junction of the small bowel with the colon (the large intestine) in the right lower abdomen.

The diverticulum can become inflamed, ulcerate and perforate (break open or rupture). This can cause obstruction of the small bowel.

If it is inflamed or perforated, Meckel's diverticulum is usually removed by surgery.