Very rare congenital syndrome with progressive hypertrichosis of the face, trunk and limbs with premature graying associated with skeletal anomalies (hollow feet, abnormal position of the thumbs, brachycephaly, increasing expression of a long neck, a narrow-long ribcage, drooping shoulders, coxae valgae with subluxations of the hip joints).
Persistent mild mental retardation and hyperuricemia due to reduced excretion of uric acid. Gout complaints occur from the 2nd decade of life.