Which radiographic finding is characteristic of pseudogout?

Which radiographic finding is characteristic of pseudogout?

• A. Chondrocalcinosis
• B. Osteophytes
• C. Erosions
• D. Joint space narrowing

Answer: (A)

Pseudogout characteristically shows calcification within the articular cartilage, known as chondrocalcinosis. This results from calcium pyrophosphate dihydrate crystal deposition in the cartilage (often in the knee menisci or wrist), appearing as linear radiodensities on X‑rays. This finding is the hallmark that helps distinguish CPPD from other joint conditions: osteoarthritis tends to show osteophytes and joint space narrowing, while inflammatory arthritis may show erosions. So the presence of chondrocalcinosis on radiographs is the most characteristic clue for pseudogout.

Pseudogout characteristically shows calcification within the articular cartilage, known as chondrocalcinosis. This results from calcium pyrophosphate dihydrate crystal deposition in the cartilage (often in the knee menisci or wrist), appearing as linear radiodensities on X‑rays. This finding is the hallmark that helps distinguish CPPD from other joint conditions: osteoarthritis tends to show osteophytes and joint space narrowing, while inflammatory arthritis may show erosions. So the presence of chondrocalcinosis on radiographs is the most characteristic clue for pseudogout.