Actinomycosis
Last Updated: 2020-11-19
ICD11: -
Last Updated: 2020-11-19
Author(s): Anzengruber F., Navarini A.
ICD11: -
Lumpy Jaw, streptotrichosis, radiation fungus, leptotrichosis.
Infection by the facultative pathogenic, anaerobic, pleomorphic, non-acid-resistant, gram-positive pathogens Actinomyces israelii, rarely Actinomyces naeslundi, Actinomyces radingae and in individual cases Actinomyces bovi. These are often mixed infections (Actinobacillus actinomycetemcomitans, staphylococci, streptococci etc.).
Non-specific granulation tissue with plasma cells or eosinophilic granulocytes, leukocyte-rich enamel necrosis. The acidophilic granules (drusen) are detectable in the HE staining and the Grocott method. Thread-like filaments appear in the periphery.
However, there is often a favourable prognosis with timely diagnosis and therapy.
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