what is carcinoma in situ
Carcinoma in situ (CIS) is a general term for an early stage cancer. Cervical carcinoma in situ is also referred to as stage 0 cervical cancer. Itâs noninvasive, which means the cancerous cells are confined to the surface of your cervix and havenât penetrated more deeply into the tissues. The cervix is the narrow, lower part of the uterus.