Carcinoid tumors are rare and tend to develop slowly. They often don’t cause symptoms until they grow large. Learn about causes, diagnosis, treatment, and outlook.

Mesenteric lymphoma is when lymphoma develops in the lymph nodes inside of your mesentery. Mesenteric tumors are very rare. A 2010 study estimates that they affect 1 out of 200,000 to 350,000 people.

Carcinoid syndrome affects certain people who have neuroendocrine tumors (NETs). Carcinoid syndrome can occur when an NET secretes hormones into the bloodstream. This can cause symptoms such as ...

If retraction is severe enough, mesenteric ischemia may occur due to arterial occlusion. Carcinoid tumors may also be investigated using nuclear medicine by I-123 MIBG imaging which will show ...