pTis: carcinoma in situ, intraepithelial, colon/rectum
ptis: carcinoma in situ, intraepithelial, colon/rectum
pTis: carcinoma in situ, intraepithelial, colon/rectum (diagnosis)
ptis: carcinoma in situ, intraepithelial, colon/rectum (diagnosis)