[Acute mastoiditis due to anaerobic bacteria. Review of the literature apropos of a case].

The authors report a case of acute mastoiditis in a four year-old boy due to fusobacterium necrophorum. The importance of the complications (septiciemia, lateral sinus thrombosis, meningitis, osteitis) and the fusobacterium necrophorum are the two majors interests of this observation. A review of the literature is performed.