Mild stranding in the central mesentery (the tissue that holds the small intestines) is a nonspecific finding (meaning it is difficult to say what caused it), but can be associated with panniculitis (inflammatory disorders in which the primary site of involvement is the subcutaneous fat).Lymph nodes are small bean-shaped structures that are part of the body's immune system. Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes (white blood cells) that help the body fight infection and disease. There are hundreds of lymph nodes found throughout the body. The mesenteric lymph nodes drain lymphatic fluid from the intestines.The main symptom for panniculitis, if it is acute, is painful or tender bumps called nodules that form in the layer of fat under your skin. Systemic symptoms may also be present and can include fatigue, fever, a general sick feeling (malaise), joint and muscle pain, abdominal pain, nausea and vomiting, and/or weight loss.