Find a New German Medicine practitioner developed by Dr Hamer. There are a few there. Also Dr. Claude Sabbah in Marselles Fr. is very good.
They will require a non-contrast brain CT scan to effective work with your mother. Peritonal cancer is a healing phase cancer from an attack conflict most likely triggered by the bladder surgery.
The Lung cancer was most likely triggered by the shock/fear trauma of the bladder or Peritonal cancer diagnosis. Metastasis-the oncologists got it all wrong.
Non-compliance, thats a problem that only you can help her to resolve. Dr. Hamer has a 92% success rate with cancer, he may be able to help with the schizo, Dr. Sabbah certainly can help the Schizophrenia.