CD40LG and systemic lupus erythematosus: Laboratories showed Coombs- positive hemolytic anemia, leukopenia, elevated ANA and anti-dsDNA antibody titers, positive antiphospholipid antibodies, elevated IgG and IgM and absence of IgA and IgE (Table 1). Consequently, the clinical diagnosis of lupus was made as she fulfilled four out of 11 ACR criteria: oral ulcers, hematologic abnormalities, immunologic findings and positive ANA.