title: Deep venous thrombosis and a circulating anticoagulant in systemic lupus erythematosus.
abstract: We describe deep venous thrombosis and a circulating anticoagulant in a male adolescent with systemic lupus erythematosus (SLE). The association of deep vein thrombosis with SLE in a pediatric patient has not, to our knowledge, been previously reported. The circulating anticoagulant was characterized as a lupus-type inhibitor. This was demonstrated by an abnormal partial thromboplastin time (PTT), the failure of the PTT to correct with the addition of an equal amount of normal plasma, and a positive tissue thromboplastin inhibitor test. Physicians should be aware that a circulating anticoagulant can be associated with SLE and that there may be a paradoxically increased incidence of thromboembolic phenomena in patients with this abnormality.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000097:blood / Q000150:complications*; D008297:Male; D010314:Partial Thromboplastin Time; D013924:Thrombophlebitis / Q000097:blood / Q000150:complications*