Prostate cancer presents a tricky screening challenge. Catching it early could mean dodging a painful journey with advanced cancer. Yet a sizable majority of prostate cancers are “indolent” — slow growing tumors that most likely would never metastasize during the patient’s lifetime, and whose treatment would do more harm than good.
Experts have long clashed over these considerations, with some arguing that the harms of PSA testing outstrip the benefits and others adamant that lives are saved with screening. The balance may now be shifting as researchers and physicians find methods that reduce the harms of screening, in particular with the use of MRI. A new study published in the New England Journal of Medicine on Wednesday showed using MRI scans can reduce unnecessary diagnosis and treatment of screen-detected prostate cancer by more than half.