Sjögren's syndrome concurrent with protein-losing gastroenteropathy can develop into secondary systemic capillary leak syndrome. Thus, it is important to diagnose the condition as soon as possible and simultaneously administer treatment for Sjögren's syndrome, protein-losing gastroenteropathy, and systemic capillary leak syndrome.
Keywords: Sjögren's syndrome; gamma globulin therapy; protein‐losing gastroenteropathy; steroid therapy; systemic capillary leak syndrome.