Introduction

Mandibular Mass (x 1000). Bacterial colonies (club colonies) are surrounded by neutrophils and macrophages with occasional lymphocytes.

Slide Ref: 985-89 *

Actinomycosis:

Actinomyces bovis is a commensal organisms within the oral cavity and infection is usually secondary to minor abrasions in the gingiva. Bacteria are resistant to phagocytosis and generally incite a chronic, granulomatous inflammatory reaction, which is very difficult to treat with antibiotics. Characteristic features of infection are the formation by the bacteria of “club colonies” or sulphur granules.

Cases

Back to Prac Classes