Writing this on behalf of my mom: After taking a sample from fluid from the lungs, the doctors discovered massive clusters of malignant cells. Up to today they are still trying to pinpoint the location of the cancer (primary) after many tests have been done with a few more to come. They think it's the breast and the doctor told us today that he saw an enlarged node under the arm and he has ordered an urgent MRI and a biopsi of the node.