Carcinoma In Situ, NOS: Diagnosis, Characteristics, and Treatment
1. Introduction Carcinoma in situ represents a critical diagnostic category in modern oncology, denoting a pre-invasive stage of cellular malignancy. The designation “not otherwise specified” indicates that while the cells exhibit clear malignant features and remain confined to their original tissue layer, the exact histological subtype or specific cellular architecture cannot be definitively categorized into … Read more