Table II.
| Features | Grading |
| Morphology | |
| Pustules | Typical†: +2; Compatible‡: +1; Insufficient§: 0 |
| Erythema | Typical: +2; Compatible: +1; Insufficient: 0 |
| Distribution | Typical: +2; Compatible: +1; Insufficient: 0 |
| Postpustular desquamation | Yes: +1; No: 0 |
| Course | |
| Mucosal involvement | Yes: −2; No: 0 |
| Acute onset (≤10 d) | Yes: 0; No: −2 |
| Resolution (≤15 d) | Yes: 0; No: −4 |
| Fever (≥38 °C) | Yes: +1; No: 0 |
| Neutrophilia (≥7000/mm3) | Yes: +1; No: 0 |
| Histopathology | |
| Other disease | −10 |
| Not representative/no histology | 0 |
| Exocytosis of neutrophils | +1 |
| Subcorneal and/or intraepidermal nonspongiform or NOS pustules with papillary edema or subcorneal and/or intraepidermal spongiform or NOS pustules without papillary edema | +2 |
| Spongiform subcorneal and/or intraepidermal pustules with papillary edema | +3 |
NOS, Not otherwise specified.
∗
Interpretation: ≤0, no acute generalized exanthematous pustulosis (AGEP); 1 to 4, possible AGEP; 5 to 7, probable AGEP; 8 to 12, definite AGEP.
†
Typical: Typical morphology with many nonfollicular sterile pustules arising on edematous erythema mainly in intertriginous areas.
‡
Compatible: Not typical but not strongly suggestive of other disease.
§
Insufficient: Lesions cannot be judged (mostly because of late of the disease or poor quality of pictures).