We report a 45 year old man who presented with history suggestive of chronic meningitis. Laboratory investigations revealed lymphocytic meningitis and a syndrome of inappropriate antidiuretic hormone secretion. History, etiological workup and complications during hospitalization suggested the presence of both SLE and sarcoidosis. He improved with intravenous steroids and is doing well on follow-up.
Sarcoidosis, systemic lupus erythematosus, coexisting, SIADH, chronic meningitis