Bartsocas-Papas Syndrome 2, is also known as popliteal pterygium syndrome, bartsocas-papas type 2. An important gene associated with Bartsocas-Papas Syndrome 2 is CHUK (Component Of Inhibitor Of Nuclear Factor Kappa B Kinase Complex). Affiliated tissues include tongue and skin, and related phenotypes are corneal opacity and prominent occiput