Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Carcinoma in situ

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Carcinoma in situ: Cancer that has stayed in the place where it began and has not spread to neighboring tissues (for example, squamous cell carcinoma in situ).

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