QuestionSBA
QuestionChoice
This knee radiograph shows chondrocalcinosis. The likely diagnosis given this finding and the clinical information given is pseudogout (calcium pyrophosphate dihydrate crystal deposition). Osteoarthritis is a risk factor for this condition. Other risk factors include hyperparathyroidism, haemochromatosis, hypercalcaemia, and osteoporosis.
10036002
a
Osteoarthritis of the knee
QuestionChoice
The most likely diagnosis is pseudogout given the clinical history and chondrocalcinosis evident on the knee radiograph. Kidney disease is more of a risk factor for gout (due to reduced urate clearance) than pseudogout.
10036003
b
Chronic kidney disease
QuestionChoice
The most likely diagnosis is pseudogout given the clinical history and chondrocalcinosis evident on the knee radiograph. Thiazide use is more of a risk factor for gout (due to reduced urate clearance) than pseudogout.
10036005
d
Thiazide diuretic use
QuestionChoice
The most likely diagnosis is pseudogout given the clinical history and chondrocalcinosis evident on the knee radiograph. NSAIDs are used to treat pseudogout and are not a risk factor for developing the condition.
10036006
e
NSAID use
QuestionChoice
The most likely diagnosis is pseudogout given the clinical history and chondrocalcinosis evident on the knee radiograph. Increased, rather than decreased, levels of vitamin D are a risk factor for ectopic calcium deposition.
10036004
c
Hypovitaminosis D
QuestionComment
thiazide diuretics are associated with chondrocalcinosis though
62003
QuestionComment
I think it's more so associated with increasing uric acid so gout no?
62110
User
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Serotonin Nightshift
User
subscriber
Vaccine Complement
Concept
Chapter
2693
6178
Crystal arthropathies
Topic
146
Rheumatology
19604
Osteoarthritis increases the risk of pseudogout due to calcium pyrophosphate crystal deposition in damaged/ degenerated joints.
Picture
2793
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0wcWB4AHmIh5h4eHeHeIh3iIiE+XB3sG
A 78-year-old man is referred to the acute medical unit with a red, warm, swollen right knee. He is systemically well; observations and blood test results are all within normal limits.

An x-ray taken of the knee is shown below:

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Which of the following conditions is a risk factor for this presentation?
a