Livedo reticularis (livedo) is characterised by reticular cyanotic cutaneous discolouration surrounding a pale central area. Physiological livedo, also known as cutis marmorata, is common in young women on exposure to cold. Pathological livedo is characterised by a fixed broken pattern, which is occasionally associated with ulceration. Livedo is frequently seen in antiphospholipid (Hughes) syndrome (APS), and appears to be associated with a worse prognosis.1 A number of patients have recently been described who have many features of APS including thrombosis, livedo and pregnancy morbidity in the absence of antiphospholipid antibodies (aPL).2 Our aim was to assess the prevalence and …