For RASSF1A, the three normal parathyroid samples were endowed with virtually no methylation (2.0%, 3.6% and 3.0% respectively) whereas case SHPT1 was endowed with a methylation density of approximately 30%, suggesting that RASSF1A methylation also can be found in parathyroid tissue with an disproportionate growth pattern, albeit not a tumour per definition. This evidence concerns the gene RASSF1 and neoplasm.