Runoff and contamination. It can sometimes be very difficult to predict where something like acid would end up in the body over time, and it could cause later issues. That's runoff. Contamination is from trying to determine what the type of acid base you're using is going to turn into after it reacts with whatever you're trying to kill. Maybe it breaks down into something even more hazardous than the tumor. Maybe the breakdown of parts of the tumor cause it to metastasize.
The point at which I'd think these risks are acceptable (it will vary based on type and location of tumor), is probably far past the point that surgery would do a better job removing the tumor.
Honjin t1_iyae025 wrote
Reply to comment by Bubbagumpredditor in Researchers have developed a new method of killing brain cancer cells while preserving the delicate tissue around it: placing long needles through the skull and sending pulses of electrical current into a glioblastoma tumour, this makes chemotherapy treatment of brain cancer suddenly possible by giuliomagnifico
Runoff and contamination. It can sometimes be very difficult to predict where something like acid would end up in the body over time, and it could cause later issues. That's runoff. Contamination is from trying to determine what the type of acid base you're using is going to turn into after it reacts with whatever you're trying to kill. Maybe it breaks down into something even more hazardous than the tumor. Maybe the breakdown of parts of the tumor cause it to metastasize.
The point at which I'd think these risks are acceptable (it will vary based on type and location of tumor), is probably far past the point that surgery would do a better job removing the tumor.