Medical oncologist Dr. Richard Zelkowitz, regional medical director for the Hartford HealthCare Cancer Institute breast program at St. Vincent’s Medical Center, discusses the various treatment options based on the aggressiveness of a patient’s diagnosis.

Dr. Zelkowitz said breast cancers are typically divided into two categories: invasive and non-invasive. DCIS, or Ductal Carcinoma in Situ, is an early stage of breast cancer that is not likely to metastasize or spread to other parts of the body.