Actinomycosis
Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
ICD11: 1C10.Z
Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
ICD11: 1C10.Z
Lumpy Jaw, Streptotrichosis, Radiation Fungal Disease, Leptotrichosis.
Infection by the facultative pathogenic, anaerobic, pleomorphic, non-acid-fast, gram-positive pathogens Actinomyces israelii, rarely also Actinomyces naeslundi, Actinomyces radingae and in individual cases also Actinomyces bovi. Frequently, there are mixed infections (Actinobacillus actinomycetemcomitans, staphylococci, streptococci, etc.).
Nonspecific granulation tissue with plasma cells or eosinophilic granulocytes, leucocyte-rich melting necrosis. The acidophilic granules (drusen) are detectable in HE staining and in Grocott's method. Filamentous filaments are seen in the periphery.
Frequently chronic form of progression, but with timely diagnosis and therapy there is a favourable prognosis.
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