ILC is a distinct histologic subtype of breast cancer

ILC was not officially understood to be the distinct breast cancer subtype that it is until 2015. It is also not a rare cancer. In fact, ILC is the second most common breast cancer histologic subtype of breast cancer.  Around 44,000 women in the US are diagnosed with ILC annually.  Unfortunately, it is still not well understood.

One of the most unique features of most ILC tumors is the absence of the protein E-cadherin and the fact that ILC tumors do not usually form a lump. This makes it much harder to detect with screening, advanced imaging, and self-exams. It is important to know the signs of ILC and report breast changes to your health care provider.