Surgical Biopsy May Reveal Cancer In Women With Rare But Benign Breast Condition

... A study at Washington University School of Medicine in St. Louis showed that in women whose initial breast biopsies revealed certain rare, yet benign breast conditions, more extensive follow-up surgical biopsies found cancer up to 25 percent of the time. Most of the cancers were invasive, meaning the tumors had penetrated normal breast tissue and would require treatment. ...