Table 1 Criteria proposed by Su and Liu[6]for the diagnostic of Sweet’s syndrome

· Abrupt onset of typical cutaneous lesions.

· Fever < 38°C

· Histopathologic evidence of a dense neutrophilic infiltrate without evidence of leukocytoclastic vasculitis.

· Association with an underlying hematological disorder, malignancy, inflammatory disease, or pregnancy, or preceded by an upper respiratory or gastrointestinal infection or vaccination.

· Abnormal laboratory values at presentation (3 of the following 4): Erythrocyte sedimentation rate greater than 20 mm/hour, positive C-reactive protein, greater than 8000 leukocytes, and greater than 70% neutrophils.

· Good response to systemic corticosteroids, potassium iodide, or steroids.