Although it’s not the most well-known infection, mesenteric adenitis is a fairly common problem among children and teenagers. What exactly is it, though? Read on to find out from our AFC Urgent Care Athens, TN team. What Is Mesenteric Adenitis? Mesenteric lymphadenitis, or mesenteric adenitis for short, is inflammation of the lymph nodes in the abdomen or stomach area. Lymph nodes are part of the body’s immune system, and they sometimes become inflamed ...