* Cancerous cells are abnormal cells that have undergone mutations in their DNA, leading to uncontrolled growth and division. These mutations can be caused by factors like genetics, lifestyle choices, or environmental exposures.
* A tumor is a mass of tissue formed by the accumulation of these abnormal, cancerous cells. It can be either:
* Benign: These tumors are non-cancerous, meaning they don't spread to other parts of the body (metastasize). They can still cause problems if they grow large and press on surrounding tissues.
* Malignant: These tumors are cancerous, meaning they have the ability to invade surrounding tissues and spread to other parts of the body via the bloodstream or lymphatic system.
In summary:
* Cancerous cells are the root cause of a tumor.
* A tumor is the physical manifestation of the uncontrolled growth of cancerous cells.
* Not all tumors are cancerous, but all cancers involve the formation of a tumor.
It's crucial to remember that not all tumors are cancerous. While a tumor is often a sign of cancer, it's important to consult a doctor for proper diagnosis and treatment.
