Cancer Survivors Network

I went to see my consultant today to see about my serous papillary primary peritoneal for the three month scan results. She said that I had microscopic cells which were spread throughout the abdomen. I already knew that from the laparoscopy I had in May. Unfortunately, nothing can be seen on the CT scan so the medical team have no idea whether the carboplatin is working. My CA125 reading is normal (as it has been throughout) even though my cancer is advanced. In the end, she said that the only way to monitor me is to see how I feel. They have to work blind. I've been referred to the surgeons again to see if they want to have a look but she feels that they'll say the procedure is too risky. I also have some lesions on the liver and from a CT taken a few years ago, it seems that they have always remained the same in size. I was told that they are probably birth marks which a lot of people have. However, they seem to have reduced during this three month course of treatment, so if they are responding to the carboplatin, could they possibly be malignant too but not microscopic? Is it possible for the microscopic cells to transform into something else? It's probably not possible to answer, but it's just possible someone might know as there's a lot of experience here. :)