This condition is a rare disorder of the immune system. The immune system - including the thymus gland, the spleen, lymph nodes, special types of tissues in the digestive system and bone marrow, lymphocytes and antibodies - protects the body from foreign substances, cells and tissues.
This can lead to strokes, heart attacks and miscarriages. These antibodies were first discovered in people who have lupus. They occur in others as well. A person who has this may also be at risk for blood clots in the legs (deep vein thrombosis) and lungs (pulmonary embolism), migraines and miscarriages.
Causes and Risk Factors
The causes of this syndrome are not yet known. However, some infections and drugs can cause the body to make these abnormal blood-clotting proteins.