PMID: 12784402Jun 5, 2003Paper

Silent, or masked, giant cell arteritis is associated with a strong inflammatory response and a benign short term course

The Journal of Rheumatology
Eric LiozonElisabeth Vidal

Abstract

To determine the frequency, characteristics, and short term outcome of patients who have biopsy-proven giant cell arteritis (GCA) but no local symptoms that can be attributed to vasculitis inflammation [silent temporal arteritis (TA)] throughout the pretreatment course of the disease or an observational period lasting at least 2 months. Of 175 consecutive patients with biopsy-proven GCA, 130 had typical cranial arteritis, 21 had silent vasculitis, and the remaining 24 had either discrete cranial symptoms (19 cases) or isolated extracranial vasculitis (5 cases). We sought to determine which of 15 pretreatment characteristics were associated with silent TA, as compared with typical cranial arteritis, and assessed the short term outcome in these patients. Of 21 patients with silent GCA, 14 met criteria for fever of unknown origin. Aside from their different clinical presentation, this population was characterized by a longer delay in diagnosis (p = 0.003), a higher mean erythrocyte sedimentation rate (p = 0.002), higher C-reactive protein (p = 0.002), and lower levels of albumin (p = 0.01) and hemoglobin (p < 0.0001). Permanent visual loss, which occurred in 24 patients (13.7%), exclusively involved those presenting with symptoms ...Continue Reading

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