Case Report
A Case of Drug Reaction with Eosinophilia and Systemic Symptoms
Table 1
RegiSCAR criteria for the likelihood of DRESS syndrome.
| | No | Yes | Unknown |
| (1) Fever > 38.5°C | −1 | 0 | −1 | (2) Enlarged lymph nodes (>2 sites, >1 cm) | 0 | 1 | 0 | (3) Atypical lymphocytes | 0 | 1 | 0 | (4) Eosinophilia | 0 | | 0 | 0.7–1.49 × 109/L or 10–19.9% | | 1 | | >1.5 × 109/L or ≥20% | | 2 | | (5) Skin rash | 0 | | 0 | Extent > 50% | 0 | 1 | 0 | At least 2 of: edema, infiltration, purpura, scaling | −1 | 1 | 0 | Biopsy suggestive of DRESS | −1 | 0 | 0 | (6) Internal organ involvement | 0 | | 0 | One | | 1 | | 2 or more | | 2 | | (7) Resolution in >15 days | −1 | 0 | −1 | (8) At least 3 investigations negative for alternative cause | 0 | 1 | 0 |
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Final score: <2 No case; 2-3 possible case, 4-5 probable case; >5 definite case.
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