| Chemotherapy shrank it to the size of an apricot, but David needed a specialised biopsy to determine whether the tumour was still cancerous. |
| The examination revealed a cancerous tumour, and a biopsy revealed a malignancy. |
| The tar in tobacco contains hundreds of carcinogens that promote the transformation of normal cells into cancerous cells. |
| Your doctor will take a tissue sample from your thyroid gland and examine it under a microscope to see if it is cancerous. |
| Indeed, in the laboratory resveratrol protects cells from cancerous change. |
| Some abnormal smears do in fact revert to normal without treatment, but some go on to become cancerous. |
