MedicalTerminology DB
Cancer & Tumors Cancer & Oncology

nonmelanoma carcinoma in situ

Meaning of nonmelanoma carcinoma in situ: Abnormal cells are found in the lower part of the epidermis (the outer layer of the skin).

Definition of nonmelanoma carcinoma in situ

Abnormal cells are found in the lower part of the epidermis (the outer layer of the skin). These abnormal cells may become cancer and spread into nearby normal tissue. Also called stage 0 nonmelanoma skin carcinoma in situ.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.