[Cervical necrotizing cellulitis caused by spider bite].

Foremost causes of originating shallow painful inflammations on the neck are: boils, carbuncle or infected dermoid cysts and atheroma. When remembering other possible inflammatory sources in this site we cont with insects bites through scarces in our environment. We report one case of spider's bite (Loxoceles rufecens) originating a necrotic neck cellulitis and remind also the several clinical symptoms of arachnid bites scarce in our environment.