Although mesenteric adenitis isn’t the most recognizable medical condition, it’s still a fairly common one among children and teens. In fact, it’s very rare that anyone over the age of 20 gets it. Keep reading to learn more about it from our AFC Urgent Care Fountain City team. What Is Mesenteric Adenitis? Mesenteric adenitis (also known as mesenteric lymphadenitis) is the swelling of the lymph nodes in the abdomen. You can get ...