Osteolysis, Essential

**Definition:** Syndromes of bone destruction where the cause is not obvious such as neoplasia, infection, or trauma. The destruction follows various patterns: massive (Gorham disease), multicentric (HAJDU-CHENEY SYNDROME), or carpal/tarsal.

**Tree numbers:** - C05.116.099.736 - C05.116.264.579.704

**Synonyms:** - Disappearing Bone Disease