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Biopsy-Negative Giant Cell Arteritis Presenting as Stroke Mimic with Vision Loss and Complex Vascular Disease
Global Journal of Medical Case Reports
| Vol 5, Issue 1
Table 2. 2022 ACR/EULAR Classification Criteria forGiant Cell Arteritis
| Criterion | Max Points | Patient Status & Score |
| Absolute Requirement: Age ≥ 50 years | N/A | Met |
| Additional Clinical Criteria | ||
| Morning stiffness in shoulders/neck | +2 | Met [+2] |
| Sudden visual loss | +3 | Met [+3] |
| Jaw or tongue claudication | +2 | Met [+2] |
| New temporal headache | +2 | Not Reported [0] |
| Scalp tenderness | +2 | Not Reported [0] |
| Abnormal examination of the temporal artery¹ | +2 | Not Reported [0] |
| Laboratory, Imaging, and Biopsy Criteria | ||
| Maximum ESR ≥ 50 mm/hour or maximum CRP ≥ 10 mg/liter² | +3 | Met [+3] (ESR 88, CRP 228) |
| Positive temporal artery biopsy OR halo sign on ultrasound³ | +5 | Not Met (Biopsy Neg, US N/R) [0] |
| Bilateral axillary involvement⁴ | +2 | Not Reported [0] |
| FDG-PET activity throughout aorta⁵ | +2 | Not Reported [0] |
| Total Score | 10 | |
| Classification Threshold | ≥ 6 |