Although it is uncommon, DCIS may present as a palpable mass in up to 10% of all cases. These palpable DCIS may harbor invasive disease in up to 26% of cases.

Can DCIS be felt?

Physical examination of the breasts: Your doctor may be able to feel a small lump in the breast during a physical examination, although a noticeable lump is rare with DCIS. In cases when DCIS cannot be felt during a physical exam, it can often be detected using mammography.

Can DCIS present as a lump?

DCIS doesn't typically have any signs or symptoms. However, DCIS can sometimes cause signs such as: A breast lump.