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Giant Cell Arteritis - Coggle Diagram
Giant Cell Arteritis
Clinical Presentation
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SUDDEN PAINLESS VISION LOSS - arteritic anterior ischaemic optic neuropathy - optic disc is very pale/swollen
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Dyspnoea, morning stiffness and unequal or weak pulses
Diagnosis
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Normochromic, normocytic anaemia
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Diagnostic criteria - 3 or more of:
- Over 50, new headache temporal artery tenderness or decreased pulsation, ESR raised, abnormal artery biopsy
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Pathophysiology
Arteries become inflamed, thickened and can obstruct blood flow
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There is a granulomatous arteritis of unknown aetiology affecting in particular the extra-dural arteries and the large arteries specifically
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Key Facts
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Systemic immune-mediated vasculitic affecting medium to LARGE size arteries of the aorta and its extra cranial branches
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Differential Diagnosis
Migraine, tension headache, trigeminal neuralgia, polyarteritis nodosa