Progressive Pseudorheumatoid Dysplasia (PPD), also known as Progressive Pseudorheumatoid Arthropathy of Childhood, is a rare genetic disorder that primarily affects the joints. It is caused by mutations in the WISP3 gene, which plays a crucial role in cartilage health and development. Unlike juvenile idiopathic arthritis, PPD is not an inflammatory condition, but rather a degenerative […]











