The full length TP53 ORF from 26 of the fresh frozen samples, including 16 PAs, one basal cell adenoma (BCA), one mucinous cystadenoma (MCA), three PLGAs, two ACCs, two MECs and one cystadenocarcinoma (CA), was amplified by RT-PCR. This evidence concerns the gene TP53 and cystadenocarcinoma.