A 42-year-old patient complains of dense edema of both hands, tightness of the skin of the face, intermittent pain in the joints, discoloration of the skin of the fingers when exposed to cold. Objectively, the following is observed: amimia of the face, telangiectasia, the skin of the hands is pale and cold. Capillaroscopy reveals reduced capillary density, giant capillaries, and hemorrhages. What is the most likely diagnosis in this case?