How many types of tumors are there in cancer?

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(C) In cancer,tumors are broadly classified into $2$ types based on their growth and spread characteristics:$1$. Benign tumors: These remain confined

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(C) In cancer,tumors are broadly classified into $2$ types based on their growth and spread characteristics:$1$. Benign tumors: These remain confined to their original location and do not spread to other parts of the body.$2$. Malignant tumors: These are a mass of proliferating cells called neoplastic or tumor cells. These cells grow very rapidly,invading and damaging the surrounding normal tissues. As these cells actively divide and grow,they also starve the normal cells by competing for vital nutrients. Cells sloughed from such tumors reach distant sites through the blood,and wherever they get lodged in the body,they start a new tumor there. This property called metastasis is the most fearful property of malignant tumors.

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