Sunday, 12 September 2010

MRCP revision battle 9.3: Pseudogout

Pseudogout involves the deposition of positively birefrigent calcium pyrophosphate dihydrate crystals in joints.

Pseudogout is associated with a variety of conditions, including:
  • hyperparathyroidism
  • hypothyroidism
  • haemochromatosis
  • Wilsons disease
  • acromegaly
  • old age
  • OA

It tends to cause a monoarthritis of a larger joint, classically a knee.

An XR may show chondrocalcinosis = soft tissue calcium deposition.

Treatment is with NSAIDs.  If this is unsuccessful steroids or hydroxychloriquine can be considered.

Now on to revision battle 9.4, a treat left over from yesterday, craniopharyngioma...