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Question
Differentiate between the following:
Benign and malignant tumour
Distinguish Between
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Solution
| Basis of Difference | Benign (non-malignant) tumour | Malignant tumour |
|---|---|---|
| Enclosure | Enclosed in connective tissue. | Not enclosed in any specific tissue. |
| Spread | Remains confined to the site of origin; does not spread to other parts of the body. | Not confined to the original tissue; spreads to other parts through blood or lymph. |
| Growth | May grow in size but cannot grow indefinitely, e.g., warts. | Cancerous cells have an infinite life span and grow indefinitely. |
| Metastasis | Does not show metastasis. | Shows metastasis (secondary tumours). |
| Fatality | Usually harmless, though it may turn malignant and is therefore removed. | Invariably fatal if the secondary tumours spread; only malignant tumours are called true cancers. |
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