050515 joint pain

Question 1

chondrocalcinosis

Answer 1

deposition within joints

CPPD

Question 2

for single joint pain, what if cultures and gram stain are negative

Answer 2

gonococcal arthritis
lyme arthritis
fungus (esp immunocomprosmied)
mycobacteria

Question 3

differential for acute monoarticular inflammatory arthritis

Answer 3

infection, crystals, acute injury