The new tests are aimed at identifying the most aggressive cancers, but some experts advise they may have not been adequately studied yet.

Does small GTPase K-Ras4A have a single state or two states, one resembling K-Ras4B and the other N-Ras? A recent study of K-Ras4A made the remarkable observation that even in the absence of the palmitoyl, K-Ras4A can be active at the plasma membrane. ...

Women with a false-positive mammogram or breast biopsy result have an increased risk of breast cancer over the next 10 years compared with those with a true negative result, a new report has found.

Hormone therapy, a common treatment for prostate cancer, is associated with an increased risk for Alzheimer’s disease, a new study has found.

Jeanette Caligiuri, co-owner of the Faith and Hope Boutique at Penn Medicine, shares her cancer story and why she and her sister opened the boutique.