JOHN P. LYNCH, M.D.; REBECCA A. HOLT, M.A.
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The term, actinomycosis, is now applied by Topley and Wilson8 to two groups of diseases of man and animals in which Actinomyces-like organisms are encountered. In the first group, the proliferation of an anaerobic organism as Actinomyces bovis gives the appearance of colonies which have a ray structure in pus or tissues and often are described as "sulphur granules" or Drusen. In the second group are included all aerobic filamentous branching organisms which form a felted mycelium without any radial arrangement and without granule formation. Two type species are: Actinomyces graminis which is non-acid-fast and forms no granules in tissues;
LYNCH JP, HOLT RA. PULMONARY ACTINOMYCOSIS DUE TO ACTINOMYCES GRAMINIS1. Ann Intern Med. ;23:91–99. doi: 10.7326/0003-4819-23-1-91
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Published: Ann Intern Med. 1945;23(1):91-99.
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