Biopsy-Negative Giant Cell Arteritis Presenting as Stroke Mimic with Vision Loss and Complex Vascular Disease
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 |
|
|
|
