Uniquely, the patient was seropositive for multiple antiphospholipid antibodies (aPLs), including Lupus Anticoagulant (dRVVT ratio 1.34), anti-phosphatidylserine/prothrombin IgM (143.72 U), β2-glycoprotein I IgM (30.9 CU), and anticardiolipin IgM (28.2 CU). Here, CD40LG is linked to systemic lupus erythematosus.