Thank you for your query.
Although cancer can spread anywhere but breast cancer
spreading to the abdominal wall is not very common. Did the doctors do any test to say that the abdominal wall is thick or did they just examine her and feel for any swelling. It would be better if you could send a picture showing her abdominal wall. If the doctors feel the need for a biopsy
, there is no harm in it, as it would rule out cancer.
What surgery did your mother undergo and what was her weight during that time?
I hope i have answered your query.