ACTINOMYCES

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"Tangled clumps of filamentous organisms, often with acute angle branching, are recognizable as “cotton ball” clusters on low power.

Filaments sometimes have a radial distribution or have an irregular “woolly body” appearance.

Masses of leukocytes adherent to microcolonies of the organism with swollen fi laments or “clubs” at the periphery may be identified.

An acute inflammatory response with polymorphonuclear leukocytes is often present."

— Nayar, R. & Wilbur, D.C. (Eds.). The Bethesda System for Reporting Cervical Cytology: Definitions, Criteria, and Explanatory Notes. 3rd ed. Springer, 2015.

This website is not affiliated with or endorsed by the authors, editors, or publishers of The Bethesda System for Reporting Cervical Cytology. Content quoted is used strictly for educational and informational purposes.

The morphology of this microorganism is pleomorphic, sometimes we can find it morphologically in bacilli and other times in cocci.

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