1
Q
what is it?
A
deposition of calcium pyrophosphate in joints and soft tissues -> inflammation
2
Q
what are the causes?
A
idiopathic
TB treatment - pyrazinamide
3
Q
who is it most common in?
A
elderly women
affects fibrocartilage - knees, writs, ankles
4
Q
what are risk factors?
A
haemochromatosis
age
gout
Wilsons
hypothyroidism
hyperparathyroidism
5
Q
what is clinical presentation?
A
monoarthritis - swollen, painful, warm joint
knee most common
6
Q
what are investigations?
A
aspiration of synovial fluid
bloods
7
Q
what is seen on aspiration of synovial fluid?
A
mildly positive birefringent rhomboid crystals
8
Q
what is seen on bloods?
A
raised inflammatory markers
high serum iron
9
Q
A
