PDGFRB and dysplasia: Our aim was to evaluate this using paired-box transcription factor (PAX6), which has developmental regulatory roles in differentiation and proliferation of astrocytes (Sakurai and Osumi, 2008), Olig2 transcription factor, regulating oligodendroglial progenitor cells (Mitew et al., 2014) and platelet derived growth factor receptor (PDGFRβ) as a marker for NG-2 progenitor subsets (Garbelli et al., 2015) in FCD3a compared to other dysplasia types and non-FCD controls.