<prompt> Answer this question truthfullyWhat does systemic lupus erythematosus mean?  <response>: <reason> Lupus may be classified into several subtypes according to clinical features, including systemic lupus erythematosus, cutaneous lupus erythematosus, drug-induced lupus, and neonatal lupus. Systemic lupus erythematosus SLE itself may be classified into several subtypes based on dermatologic manifestations or glomerulonephritis. SLE may be classified according to dermatologic manifestations into 4 subtypes: acute cutaneous lupus erythematosus ACLE, subacute cutaneous lupus erythematosus SCLE, chronic cutaneous lupus erythematosus CCLE, and intermittent cutaneous lupus erythematosus ICLE. SLE may be classified according to glomerulonephritis into 6 subtypes: minimal mesangial lupus nephritis class I, mesangial proliferative lupus nephritis class II, focal lupus nephritis class III, diffuse lupus nephritis class IV, lupus membranous nephropathy class V, and advanced sclerosing lupus nephritis class VI. 