The right is in contact with a coil of ileum, the left with the colon.
In Fig. 128 the ileum enters the colon from the right and below.
The ileum is the part of the small intestine most frequently the seat of disease, but the ileum is rarely affected alone.
It is usually found in the lower part of the ileum, the ccum, sigmoid flexure, and other parts of the colon.
Perforating ulcers are occasionally seen in the large intestine or ileum.
In the ileum the villi are shrunken, with few cells; in some cases they disappear altogether.
The pains are more severe and precede the stools, which are more frequent and larger than in catarrh of the ileum.
On the other hand, in the ileum inflammatory lesions were present as a rule.
In one case it was found wound about the ileum; in another, spirally turned at its end and lightly adherent to a hernial sac.
An incision four inches in length should be made midway between the last rib and the crest of the ileum.