Which bacterial infection is characterized by the formation of 'sulfur granules' within abscesses, typically in the cervicofacial region?
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Correct answer: Actinomyces israelii
Actinomycosis causes chronic abscesses that drain through sinus tracts. The 'sulfur granules' are actually dense colonies of the filamentous bacteria Actinomyces israelii, often surrounded by a radiating fringe of eosinophilic material (Splendore-Hoeppli phenomenon).
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