Cutaneous actinomycosis is a anaerobic, Gram-positive, filamentous type of bacteria in the genus Actinomyces,:270 invasion of the soft tissue leads to the formation of abnormal channels leading to the skin surface (external sinus tracts) that discharge pale yellow sulfur granules.
This disease is uncommon, and has non-specific clinical features, making it difficult to diagnose.
Cervicofacial, pulmonary/thoracic and gastrointestinal forms exist, yet cervicofacial disease accounts for two-thirds of reported infections.
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