PDGFB and bilateral striopallidodentate calcinosis: Sanchez-Contreras et al. reported that the PFBC-causing p.Arg695Cys and p.Leu658Pro mutations cause impairment of PDGF-Rβ autophosphorylation in a cell culture with PDGF-BB, a recombinant human PDGF-B homodimer.