Which radiographic feature is NOT typically associated with pseudogout?

• A. Chondrocalcinosis
• B. Subchondral cysts
• C. Osteophyte formation
• D. Degenerative changes at MCP joints

Answer: (C)

Pseudogout (CPPD) has radiographic features that reflect calcium pyrophosphate deposits within joint structures. The classic sign is chondrocalcinosis, where calcification appears in the articular cartilage or menisci, often seen in the knee. Subchondral cysts can occur as part of the joint’s response to cartilage loss, and degenerative changes at the MCP joints are a recognized pattern in CPPD. Osteophyte formation, on the other hand, is a hallmark of osteoarthritis and is not a typical or defining feature of pseudogout. It may appear if OA is present, but it does not characterize CPPD itself. So osteophyte formation is the radiographic feature not typically associated with pseudogout.