All are included in sydney revision of sapporo criteria for Antiphospholipid antibody syndrome:: (A) Vascular thrombosis, (B) Livedo reticularis, (C) 3 or more unexplained spontaneous aboions, (D) Lupus anticoagulant in plasma
Answer is B. Livedo reticularis is not included in the diagnostic criteria for Antiphospholipid antibody syndrome. Ref: Harrisons principles of internal medicine, 18th edition: Page 2737