PT - JOURNAL ARTICLE AU - Pratyush Shahi AU - Apoorv Sehgal AU - Aarushi Sudan AU - Shreya Sehgal TI - Delayed-onset progressive pseudorheumatoid dysplasia with secondary synovial chondromatosis AID - 10.1136/bcr-2020-234461 DP - 2020 May 01 TA - BMJ Case Reports PG - e234461 VI - 13 IP - 5 4099 - http://casereports.bmj.com/content/13/5/e234461.short 4100 - http://casereports.bmj.com/content/13/5/e234461.full SO - BMJ Case Reports2020 May 01; 13 AB - A 25-year-old man presented to us with progressive multiple joint pain, enlargement, and restricted movements. X-rays showed platyspondyly, multiple epiphyseal widening, synovial chondromatosis, and decreased bone stock and cortical thickness. Genetic testing showed biallelic pathogenic variants in CCN6 which confirmed the diagnosis of progressive pseudorheumatoid dysplasia. Supportive care, physical therapy, genetic and psychological counselling were provided to the patient.