carcinoma in situ

Pronunciation: (KAR-sih-NOH-muh in SY-too)

A group of abnormal cells that remain in the place where they first formed. They have not spread. These abnormal cells may become cancer and spread into nearby normal tissue. Also called stage 0 disease.

Definition from: Cancer.gov

Carcinoma in situ (CIS) is a group of abnormal cells that are found only in the place where they first formed in the body (see left panel). These abnormal cells may become cancer and spread to nearby normal tissue (see right panel).El carcinoma in situ (CIS) es un grupo de células anormales que se encuentra solo en el primer lugar donde se formó en el cuerpo (ver el panel izquierdo). Estas células anormales se pueden convertir en cáncer y diseminar al tejido normal cercano (ver el panel derecho). Date last modified: 2014-11-19