Malignancy (CANCER)

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Malignancy (from Latin male 'seriously', and - gnus 'conceived') is the propensity of an ailment to turn out to be logically more regrettable. 

Malignancy is generally recognizable as a portrayal of disease. A threatening growth diverges from a non-harmful harmless cancer in that a danger isn't self-restricted in its development, is fit for attacking into adjoining tissues, and might be equipped for spreading to far off tissues. A harmless growth has none of those properties.