Cancer is nearly always caused by abnormalities in genetic material that are either inherited or there was an error in the splicing of the genes in DNA replication.
Cancer is a loss of normal growth including a loss apoptosis.
Carcinoma in situ is the earliest stage of carcinoma; it is only present in tissues where it started and has not spread ti any near tissues.
Can be Macroscopic or microscopic.
Macroscopic- Requires imaging and surgery- They meausre size, consistency, shape, capsule an appearance.
Microscopic- Cell pattern, differention, biochemistry, neoplasia.Requires, imaging and biopsy
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