This is different, Lymph edema is not because of Kidney or CHF as much as OP lead on.  It is more about the mechanical dysfunction of the lymphatic system where fluid is allowed into the interstitial space but has no way out even with Lasix and other treatments.  This then causes the area to be shown as puffy and start to look fat there is no cure for this disease however manual lymph drainage for the immediate effected areas often help.  This disease is most common from cancer when they have to take out lymph nodes to prevent the spread of the cancer http://lymphedematreatmentact.org/wp-content/uploads/2011/06/Lymphedema2009.jpg Notice how one arm appears fat while the other appears normal? That is literally just lymph fluid building up.