A microarray profiled expression of 1890 human microRNAs (miRNAs) between MEN1 PAs with somatic MEN1 LOH (MEN1 LOH PAs) and MEN1 PAs still retaining one wild type copy of the MEN1 gene (MEN1 non-LOH PAs), showed 3 miRNAs as significantly differentially expressed between the two groups of adenomas [13]. Here, MEN1 is linked to adenoma.