Pathology dictionary -
A duct is a small tube made up of cells. A duct acts like a pipe, connecting glands found deep inside tissue to the surface of the tissue or outside of the body. The purpose of a duct is to provide a path for fluids to move from one place to another.
The inside of a duct is lined by epithelial cells. Ducts are commonly found in the skin, salivary glands, breast, pancreas, and liver.
Cancers that start from ducts
Some cancers start from the epithelial cells on the inside of ducts. Many of these cancers will have the word 'ductal' in their name.
Examples of cancers that start from ducts: