Hajdu-Cheney Syndrome

**Definition:** Rare, autosomal dominant syndrome characterized by ACRO-OSTEOLYSIS, generalized OSTEOPOROSIS, and skull deformations.

**Tree numbers:** - C05.116.099.052.400 - C05.116.264.579.052.400 - C16.131.621.445 - C16.320.355

**Synonyms:** - Arthrodentoosteodysplasia - Cheney Syndrome - Osteolysis, Multicentric - Acroosteolysis with Osteoporosis and Changes in Skull and Mandible