Special types of invasive breast carcinoma

Special types of invasive breast carcinoma

There are some special types of breast cancer that are sub-types of invasive carcinoma.
These are often named after features seen when they are viewed under the microscope,
like the ways the cells are arranged.
Some of these may have a better prognosis than standard infiltrating ductal carcinoma.
These include:
· Adenoid cystic (or adenocystic) carcinoma
· Low-grade adenosquamous carcinoma (this is a type of metaplastic carcinoma)
· Medullary carcinoma
· Mucinous (or colloid) carcinoma
· Papillary carcinoma
· Tubular carcinoma
Some sub-types have the same or maybe worse prognosis than standard infiltrating ductal
carcinoma. These include:
· Metaplastic carcinoma (most types, including spindle cell and squamous)
· Micropapillary carcinoma
· Mixed carcinoma (has features of both invasive ductal and lobular)
In general, all of these sub-types are still treated like standard infiltrating ductal
carcinoma.