A tumor is a solid lump found in body tissue. Tumors need to be classified as either benign tumors (non-cancerous) or malignant tumors (cancer). Benign tumors are generally better than malignant tumors, but they are not always harmless: benign ...

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  • Angioma: Angioma is an overgrowth of either blood vessels or lymphatic vessels creating a lump that is usually benign. An overgrowth ...

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