PHLDA2 and neoplasm: Tumour-suppressing STF cDNA 3 (TSSC3) (also known as Pleckstrin homology-like domain family A member 2/PHLDA2) was expressed in the cytoplasm of cytotrophoblasts (CT) of all cases of PMs (15/15, 100%) and NMAs (17/17, 100%).