• When we talk about lumps, growths or tumours we are usually talking about neoplasia. 
  • A neoplasm is a bunch of cells that forms a lump or tumour, and it is the result of uncontrolled growth of cells.
    • This may be due to a mutation or a lack of programmed cell death (apoptosis).  
  • A neoplastic mass is also called a tumour and it may be  
    • benign (link to What is a benign tumour?) or  
    • malignant (link to What is cancer? And Why is malignant neoplasia called cancer?)