《Slide 115.》Actinomycosis, Liver
A. Brief Descriptions:
Anaerobic non-spore forming bacteria, gram positive bacilli.
Normal commensal organism in the gastrointestinal tract.
Sulfar granules : yellowish granules found grossly.
B. Gross Findings:
Abscess contain sulfur granules.
C. Micro Findings:
Severely destructed liver with abscess formation.
In the abscess, sulfur granule with aggregation of Actinomycetic filaments.
D. Others:
Compare 《Slide 42.》 Actinomycosis of tongue.
E. Reference:
Robbins Pathologic Basis of Disease, 6th ed. P.369~370.
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【 Fig. 115-1 (LP)】Focal destruction of hepatic parenchymal architecture.
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【 Fig. 115-2 (LP)】In abscess area, several dense basophilic sulfur granules are seen.
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【 Fig. 115-3 (LP)】Foci of abscess formation showing necrotic debris accumulation with dense neutrophilic infiltration.
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【 Fig. 115-4 (HP)】Radial arrangement of Actinomyceles with lymphocytic infiltrate at periphery.