Benign tumour | Malignant tumour |
Bening tumour cells grow locally and cannot spread by metastasis. Hence they are harmless tumours. | Malignant cells enter blood vessels and invade neighboring tissues. Hence they are harmful tumours. |
Benign tumors grow slowly. | Malignant tumors grow more rapidly than benign tumors. |
They recur locally. | They recur at distant sites such as the brain, lungs, bones and liver depending on the type of cancer. |
These tumors seldom recur after surgery. | These tumors recur more commonly. |