We describe the behavior of hemostatic variables in children with port
al vein thrombosis (PVT) and in a control pediatric population. Heredi
tary protein C (PC) or protein S (PS) deficiency was not a etiologic f
actor for PVT in children. Minor signs of comsumption of coagulation f
actors II, V, fibrinogen and hyperfibrinolysis were detected. One chil
d had lupus anticoagulant (LA).