Phlegmasia Cerulea Dolens - In phlegmasia alba dolens, the thrombosis involves only major deep venous channels of the extremity, therefore sparing collateral veins. The venous drainage is decreased but still present; the lack of venous congestion differentiates this entity from phlegmasia cerulea dolens. #Clinical #EM #IM #Phlegmasia #Cerulea #Dolens #DVT #LIFTL