Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Measurement of invasive tumor size. (A) Pathologic tumor (pT) category is based on the largest diameter of invasive carcinoma. Ductal carcinoma in situ, which is present on the upper right side of the invasive carcinoma, is not included in this measurement. (B) In posttreatment samples, the pT category (ypT) is based on the diameter of the largest contiguous focus (bar) of residual invasive carcinoma.
