pre-cancerous

Adenocarcinoma In Situ (AIS): Definition

Adenocarcinoma in situ (AIS) is an early form of cancer that develops from glandular cells — the specialized cells that line organs and produce substances such as mucus or hormones. The phrase “in situ” is Latin for “in its original place,” meaning the abnormal cells are confined to the layer of tissue where they first …
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What is a precursor?

In pathology, the term precursor is used to describe any non-cancerous condition that has the potential to turn into cancer over time. Precursor diseases can be caused by viruses, genetic changes, or environmental factors such as smoking or excessive alcohol consumption. The chance that a precursor will eventually turn into cancer depends on many factors …
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