Have you been tested for Alpha-1 Antitrypsin Deficiency disease? It's a rare inherited disease that affects the liver & lungs. I have Alpha-1 & I'm liver affected & my sibling is lung affected. Panniculitis is a subtype autoimmune disease of liver patients with affected Alpha-1. There is no cure for Alpha-1 other than undergoing a liver and/or lung transplant. There is a treatment available for mesenteric panniculitis which is corticosteroids such as azathioprine (Imuran).