This is Dr. David
this would not be due to cancer.
but it can be due to poor circulation, poor liver function, low blood albumin levels, poor heart function, lack of exercise, smoking, diabetes
she needs to elevate her legs up above her heart as frequently as possible to decrease swelling
she needs to consult with wound care doctors and nurses and get more testing of your heart and liver to see if there are new problems.
she needs to avoid salt in the diet which can leave to fluid retention.
let me know if you have other questions.
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