title: Acute necrotizing ulcerative tonsillitis and gingivitis (Vincent's infections).
abstract: The cases of two patients with acute necrotizing ulcerative infections are reported. One had involvement of the tonsil and the other, of the gingivae. In both cases a Gram stain revealed abundant fusiform rods and spirochetes. Both patients responded to treatment with oral penicillin, showing improvement and/or healing in three to six days. These two cases demonstrate the usefulness of the Gram stain in supporting a diagnosis which would otherwise rest solely on clinical grounds.
mesh_terms: D000328:Adult; D001419:Bacteria / Q000648:ultrastructure; D005260:Female; D005881:Gingiva / Q000473:pathology; D005892:Gingivitis, Necrotizing Ulcerative / Q000382:microbiology / Q000473:pathology*; D006801:Humans; D014066:Palatine Tonsil / Q000473:pathology