Classification: ICD-9 528.1; ICD-10 A69.0
Syndromes and synonyms: Cancrum oris, gangrenous stomatitis
Agent: Oral commensal bacteria such as Fusobacterium necrophorum, F. nucleatum and a spirochete (formerly identified as Borrelia vincenti) are the suspected etiological agents.
Reservoir: Human buccal flora.
Transmission: Noma is an opportunistic infection with endogenous buccal flora.
Incubation period: Days to weeks.
Clinical findings