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Dr. Jay Harness
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VIDEO: Dr. Harness - Ductal Carcinoma In Situ, What Is This?

Dr. Harness describes ductal carcinoma in situ.

Dr. Harness, M.D.:
Cancer of the female ductile system arises from cells lining the ducts. Those are called epithelial cells. As they grow, they become hyperplastic or hyperplasia. Then they become atypical, meaning they are not normal, and then at some point become in situ cancer. The term in situ means confined within, and so it’s confined within the wall of the ductile system.

Now the in situ cancer can grow up and down the duct like growing up and down a straw, but it’s still inside the ductile system and therefore potentially completely curable.

About Dr. Harness, M.D.:
Dr. Jay Harness, M.D., is the Director at St. Joseph Hospital Comprehensive Breast Center. Practicing medicine for 35 years, Dr. Harness specializes in general surgery and medical oncology. Graduating medical school from the University of Michigan, Ann Arbor, he conducting his internship and residency at the University of Michigan Medical Center. Recognized nationally and internationally for his work in breast and endocrine surgery, Dr. Harness is the immediate past-President of The American Society of Breast Surgeons and is President-elect of Breast Surgery International. Dr. Harness can assist patients in English, Spanish, and Vietnamese.

Visit Dr. Harness at St. Joseph Hospital

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