Criteria of Bjornsdottir et al the Diagnosis of Acute Cellulitis

Clinical features of acute cellulitis - all of the following:

(1) acute onset (over < 72 hours)

(2) demarcated cutaneous inflammation

(3) presence of one or more of the following findings:

(3a) fever

(3b) chills

(3c) leukocytosis (white blood cell count > 10,500 per µL)

(4) absence of abscess and necrotizing fasciitis