Intestinal lymphangiectasia in an adult: case report.

Intestinal lymphangiectasia is a group of rare diseases characterized by dilation of lymphatic channels. Its pathophysiology comprises obstruction of small bowel lymphatic drainage with secondary dilation of mucosal, submucosal, or subserous lymphatic vessels, distorting villous architecture and causing loss of lymph into the intestinal lumen, leading to malabsorption. The affected lymphatic vessels are primarily located in the small intestine, which is affected to a varying extent.