It's never lupus! This cheeky "House" t-shirt features the definition to one of the most commonly proposed diagnoses from the medical drama series. The front of the t-shirt reads, "SYSTEMIC LUPUS ERYTHEMATOSUS (SLE) N, an inflammatory connective tissue disease hat is often held to be an autoimmune disease and that occurs chiefly in women, is characterized especially by fever, skin rash, and arthritis, often by acute hemolytic anemia, by small hemorrhages in the skin and mucous membranes, by inflammation of the pericardium, and in serious cases by involvement of the kidneys and central nervous system." The back of the shirt reads, "It's not lupus."