Brief Answer:
Hello dear. It may indicate disease progression

Detailed Answer:
hello dear. I have gone through the details. So if the fluid is being retained in abdomen(which we call ascitis), then it may be a sign of disease progression. If fluid retention is generalised (all over the body), then it may indicate low albumin level of the body. Sometimes it may also indicate kidney dysfunction.
A liver and kidney function tests can rule out hypoalbuminemia and renal dysfunction as the cause of fluid retention. For disease progression, a ct scan can be done and compared with previous scan.
Thanks and regards

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