What does Carcinoma in situ mean?

Carcinoma in situ meaning in Medical Dictionary

Cancer that has remained in the location in which it started and has now maybe not spread to neighboring areas (for instance, squamous cellular carcinoma in situ).

Carcinoma in situ meaning in General Dictionary

a cluster of cancerous cells which has had perhaps not yet invaded the deeper epithelial structure or spread to many other parts of the body

Carcinoma in situ - German to English

carcinoma in situ [synonymous with high-grade dysplasia in most organs]