Fig. 2
From: A novel mutation in the proteoglycan 4 gene causing CACP syndrome: two sisters report
Radiological evaluation of “Patient 2”. a Skeletal survey reveals heterogeous lucensies of the carpal bones, distal radial and ulnar epiphysis. The joint spaces in the wrists and proximal and distal interphalangeal joints were markedly narrow. Periarticular bone resorption in MCP, PIP, DIP joints and carpal bones were noted. b Both hip joint spaces were narrow and coxa vara deformity was present. c Periarticular bone resorption adjacent to knee joints were observed along with joint space narrowing. Lucensies were noted on the proximal diaphysis of left tibia. d Millimetric subchondral cysts on the humeral head and dense fluid in the joint space and subscapular bursa. e The synovium enhanced after contrast administration consistent with synovitis