What is cancer?
Your body has trillions of cells. They multiply, expand, and create new cells every day. When cells become damaged or old, they expire. Cancer develops when cells that ought to have perished continue to exist and when unneeded new cells start to grow. Eventually, the unchecked cell development produces enough additional cells to form masses. They are referred to as tumours.
Osteosarcoma is one of the many types of cancer [1].
What is a tumor?
A tumour is a mass or lump. Most cancers start as tumours. Not all lumps are cancerous, so your doctor will need to do a biopsy to establish whether the lump is benign (not cancerous) or malignant (cancerous).