Actinomycosis is caused by
Actinomycosis is caused by Actinomyces israeli,, an anaerobic gram positive filamentous organism.
Microscopy reveals characteristic sulphur granules in the pus.
The four clinical forms of actinomycosis are cervico-facial (commonest), ileocaecal, thoracic and in liver.
Penicillin is the drug of choice in treating actinomycosis.
Gram +ve filamentous Bacteria
Gram –ve filamentous bacteria
Fungi
None of the above