Discovery helps show how breast cancer spreads

School of Medicine researchers have discovered why breast cancer patients with dense breasts are more likely than others to develop aggressive tumors that spread. The finding opens the door to drug treatments that prevent metastasis. Shown are collagen fibers at the boundary of a tumor. Fibers that tend to be perpendicular to the tumor’s surface indicate a poor prognosis.

PSA test better predicts cancer in men taking prostate-shrinking drug

A new study by Gerald Andriole, MD, chief of urologic surgery at Washington University School of Medicine in St. Louis, suggests the PSA test is more reliable in men taking dutasteride (Avodart®), a drug widely prescribed to shrink an enlarged prostate gland. Even a slight rise in PSA levels among men taking the drug was a stronger indicator of cancer than rising PSA levels in men taking a dummy pill.