Hi, GIST is tumor which respond to imatinib. swelling of face may be due to fluid retention caused my imatinib tablet. It is a well known side effect of imatinib. You need to check his weight every month to know fluid retention. I think you dont have to stop the tablet imatinib unless it is very severe. It may be self limiting.
Answered2015-11-05 13:19:11
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