“ This is a benign, proliferative disorder of the synovium and is more common between ages 20 and 40 years. Onset is insidious; 50% have a ...
“
This is a benign, proliferative disorder of the synovium and is more common between ages 20 and 40 years. Onset is insidious; 50% have a history of trauma. Presentation is typically increasing stiffness and soft tissue swelling affecting a single joint; the knee is most commonly affected (80%). In the hands and feet, it is known as a giant cell tumour (GCT).
PLAIN FILM
• Early—soft tissue swelling and effusion.
• Soft tissues appear dense due to haemosiderin deposits.
• Multiple sites of cystic radiolucencies/articular erosions due to bone invasion.
• Scalloping of pre-femoral fat pad.
• Soft tissue mass around the joint (if there is calcification, PVNS is excluded).
• Bone density is preserved.
• Preservation of joint space.
MRI
• Large lobular intra-articular mass, low signal on both T1 and T2 (due to haemosiderin).
• Haemorrhage is relatively common and causes blooming artefact on gradient echo.
• Low signal effusion on all sequences is characteristic.
• Other joint lesions low on T1 and T2: haemophilia, synovial haemangioma and neuropathic osteoarthritis.
”
- For Radiology Cases, Discussion join: Radiology Made Easy on Facebook
- Subscribe to our youtube channel for FRCR radiology case discussion
- Join our Telegram group: Radiology Made Easy
