benign tumors
When cells are not responding to normal controls over growth and division, they can form tissue masses known as tumors. Tumors can be either benign (not cancerous) or malignant (cancerous).
the cancerous cells
Brain cells
A carcinoma is a cancerous tumor.
Cancerous cells are abnormal cells that divide uncontrollably and can invade surrounding tissues. A tumor is a mass formed by the accumulation of these cancerous cells. Tumors can be classified as benign, where the cells remain localized, or malignant, where they can spread to other parts of the body and disrupt normal bodily functions. Thus, cancerous cells are the foundational components of a tumor.
Cancerous Cells
metastasis
Radiation can harm both normal and cancerous cells, but because cancerous cells are often more sensitive to radiation, they may be more likely to be damaged or killed by radiation therapy. Normal cells can repair themselves more effectively than cancerous cells, which helps protect them from the effects of radiation.
metastasis
A cancerous tumor.
to a gene
The cells in line A are likely cancerous because they appear crowded, irregularly shaped, have enlarged nuclei, and are not organized in a uniform manner as normal cells. These characteristics suggest uncontrolled growth and division typical of cancerous cells.