RT Journal Article SR Electronic T1 Delayed-onset progressive pseudorheumatoid dysplasia with secondary synovial chondromatosis JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e234461 DO 10.1136/bcr-2020-234461 VO 13 IS 5 A1 Pratyush Shahi A1 Apoorv Sehgal A1 Aarushi Sudan A1 Shreya Sehgal YR 2020 UL http://casereports.bmj.com/content/13/5/e234461.abstract 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.