Popliteal Pterygium

Popliteal Pterygium Syndrome
... Popliteal pterygium syndrome (PPS) is an inherited condition affecting the face, limbs, and genitalia ... The syndrome goes by a number of names including the popliteal web syndrome and, more inclusively, the facio-genito-popliteal syndrome ... on the basis of the most unusual anomaly, the popliteal pterygium (a web behind the knee) ...