Benign Tumours: Grow slowly, Cells are often specialised, Rarely reoccurs after treatment, Generally non life threatening, The nucleus has a normal appearance,  Treated by removal by surgery, Stick together and remain as primary tumours in the tissue, Localised effects on the body, Surrounded by a capsule of dense tissue so it remains compact, Malignant Tumours: Grow very quickly, Can become unspecialised , Can reoccur after treatment, Can be life threatening, nucleus appears larger and darker due to abundance of DNA, Surgery, radiotherapy and chemotherapy to treat, Can spread through the body causing secondary tumours known as metastasis, Effects whole body, Not surrounded by capsules so they can grow finger like projections into the surrounding tissues,

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