title: Lupus erythematosus panniculitis.
abstract: A young woman had a history of subcutaneous nodules, migratory arthralgia, myalgia, and lymphadenopathy. Histopathologic characteristics of the nodular subcutaneous lesion showed a massive lobular panniculitis characteristic of lupus erythematosus (LE) panniculitis. The diagnosis of LE panniculitis was established by demonstration of a positive linear basement membrane zone stain of the involved skin by direct immunofluorescence microscopy. Initial serologic findings showed negative antinuclear antibody (ANA) and anti-DNA antibody test results and a negative LE cell preparation. Subsequently, a positive ANA test result developed. The test result for extractable nuclear antigen was strongly positive, although initial test results for antibodies to ribonucleoprotein and Sm antigens were negative.
mesh_terms: D000328:Adult; D000974:Antibodies, Antinuclear / Q000032:analysis; D001485:Basement Membrane / Q000473:pathology; D001706:Biopsy; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis* / Q000473:pathology; D009504:Neutrophils; D010201:Panniculitis, Nodular Nonsuppurative / Q000175:diagnosis*
chemical_list: D000974:Antibodies, Antinuclear