MAC12870_E04_N

Understanding DCIS (Ductal carcinoma in situ)

Booklet
Published: 26 Oct 2018
Next review: 30 Apr 2021
Edition: 4
MAC12870_E04_N
This booklet explains an early, non-invasive form of breast cancer called ductal carcinoma in situ (DCIS). It covers the causes and symptoms, diagnosis, staging and grading and treatments.
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Published: 26 Oct 2018
Next review: 30 Apr 2021
Edition: 4
This booklet explains an early, non-invasive form of breast cancer called ductal carcinoma in situ (DCIS). It covers the causes and symptoms, diagnosis, staging and grading and treatments.

About this booklet

This booklet is about ductal carcinoma in situ, usually called DCIS for short. DCIS is the earliest possible form of breast cancer.

DCIS is non-invasive. This means the breast cancer cells are contained in the ducts and lobules. They have not spread into surrounding breast tissue.

This booklet is for people who have DCIS. We hope it answers your questions and helps you deal with some of the feelings you may have. We cannot give advice about the best treatment for you. You should talk to your doctor, who knows your medical history.

DCIS can occur in both women and men, but it is very rare in men. 

Visit our online information about DCIS.

How we can help

Macmillan Cancer Support Line
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Clinical Information Nurse Specialists
Our Cancer Information Nurse Specialists are dedicated cancer nurses available to talk to on our Macmillan Cancer Support Line. 
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There are lots of benefits that could help you after a cancer diagnosis, but the system can be confusing. Our Welfare Rights Advisors are here to help.