TRICOMONAS VAGINALIS

Gallery

“Pear-shaped, oval, or round cyanophilic organism ranging in area from 15 to 30 μm².

Nucleus is pale, vesicular, and eccentrically located.

Eosinophilic cytoplasmic granules are often evident. Flagella are sometimes observed.

Leptothrix may be seen in association with T. vaginalis.

Associated background changes include mature squamous cells with small perinuclear halos (‘trich change’) and 3-dimensional clusters of neutrophils (‘polyballs’).”

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

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