ABSTRACT
HISTORIC NOTES Lupus anticoagulant (LA) was first described in the early 1950s as prolonging certain clotting assays. A few years later, LA was found to be associated with the false positive test for syphilis and, paradoxically, thrombosis.
HISTORIC NOTES Lupus anticoagulant (LA) was first described in the early 1950s as prolonging certain clotting assays. A few years later, LA was found to be associated with the false positive test for syphilis and, paradoxically, thrombosis.