Final answer:
Ductal carcinoma in situ (DCIS) is a type of breast cancer that has not spread to surrounding tissues. The primary indications of DCIS include unusual bleeding or discharge, a lump in the breast or elsewhere, indigestion or difficulty swallowing, changes in a wart or mole, and a persistent cough or hoarseness.
Step-by-step explanation:
Ductal carcinoma in situ (DCIS) is a type of breast cancer that is non-invasive and has not spread to surrounding tissues. It is important to detect and treat DCIS early to prevent it from becoming invasive. The primary indications of DCIS include:
- Unusual bleeding or discharge
 - Thickening or lump in the breast or elsewhere
 - Indigestion or difficulty in swallowing
 - Obvious changes in a wart or mole
 - Nagging cough or hoarseness