Livedo Reticularis and Cyanosis of the Toes After CABG

Patient with Extensive Livedo Reticularis and Cyanosis of the Toes After CABG
Patient with Extensive Livedo Reticularis and Cyanosis of the Toes After CABG

Five weeks after uneventful coronary-artery bypass grafting, an 81-year-old woman presented to the hospital with extensive livedo reticularis and cyanosis of the toes.

What could be the diagnosis ?