Changes

====== Extrinsic ======

====== Extrinsic ======

Obstruction of the intestine due to external factors such as tumours, abscesses, and fibrous adhesions following peritonitis, perforation or surgery is a common occurrence.   

Obstruction of the intestine due to external factors such as tumours, abscesses, and fibrous adhesions is a common occurrence.   

*Neoplasia in structures adjacent to the intestines can spread and cause external compression. Pancreatic tumours in particular can extend and impinge on the duodenum.   

*Neoplasia in structures adjacent to the intestines can spread and cause external compression. Pancreatic tumours in particular can extend and impinge on the duodenum.   

*Inflammatory adhesions following peritonitis or surgery for example consist of fibrous tissue bands that may restrict intestinal motility and cause kinks in the mesentery.  

*Inflammatory adhesions, following gut perforation, peritonitis or surgery for example, consist of fibrous tissue bands that may restrict intestinal motility and cause kinks in the mesentery.  

*Pedicles of tumours such as lipomas in horses can become wound in loops of intestine leading to obstruction and possible strangulation.   

*Pedicles of tumours such as lipomas in horses can become wound in loops of intestine leading to obstruction and possible strangulation.   

*Prostatic enlargement in the dog can lead to compression of the rectum.

*Prostatic enlargement in the dog can lead to compression of the rectum.