Mesenteric lymphadenitis, also known as mesenteric adenitis, is a condition that involves the swelling of the lymph nodes in the abdomen. It’s most common among children and teens younger than the age of 16, but adults can get it, too. Learn more about its causes and treatments from our AFC Urgent Care Monroe Road team below. What Is Mesenteric Adenitis? Mesenteric adenitis is the swelling of the lymph nodes in the mesentery, which attaches ...