View source for Tumour

A tumour<ref>https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0024119/</ref>&nbsp;is formed by accelerated cell cycle which leads to uncontrollable growth of cell. This results into abnormal growth of mass tissue with no purposeful function. Tumour is also referred to as [[Neoplasm|neoplasm]]. Tumours can either be benign, premalignant or malignant.&nbsp;<br> 

=== Benign Tumours&nbsp;<br>  ===

Benign tumours are not [[Cancer|cancerous]] tumours and do not invade surrounding tissue. Despite not being cancerous they can be harmful if they are pressing on [[Blood vessels|blood vessels]] or [[Nerves|nerves]].&nbsp; 

=== Premalignant Tumours  ===

Premalignant tumours are tumours that are not yet cancerous but gruadually developing properties of malignant tumours. 

=== Malignant Tumours&nbsp;  ===

Malignant tumours are cancerous tumours. These tumours metastasise and invade surrounding tissue. One key feature of malignant tumours is that they divide uncontrollably.&nbsp;<br> 

=== '''Reference'''<br>  ===

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