| Namespace | disease_ontology | Obsolete | false |
| description | A syndrome that is characterized by congenital or early-onset camptodactyly, noninflammatory arthropathy with synovial hyperplasia and in some patients progressive coxa vara deformity, and/or noninflammatory pericardial or pleural effusion that has_material_basis_in autosomal recessive inheritance of homozygous mutation in the proteoglycan 4 gene (PRG4) on chromosome 1q31. |