NCI Bethesda System 2001 logo American Society of Cytopathology logo
 Main Page 
 Search By:
   Atlas Chapter 
   Atlas Figure # 
   Terminology Table 
   Keyword 
   Preparation Type 
   BIRP Images 
 Self-Test 
 Acknowledgments 
 Links 
 Feedback 

[Back to Listing]
Atlas Interpretation:
Interpreted image
Type of Preparation:
Conventional

Magnification:
High

Interpretation:
NILM: Trichomonas vaginalis

Cytomorphologic Criteria:
Trichomonas is a pear-shaped, oval to round, cyanophilic organism that ranges in size from 15-30 microns. The nucleus is pale, vesicular and centrally located. Eosinophilic granules are often visible in the cytoplasm.

Explanatory Notes:
Seen in this image are numerous trichomonads adhering to a squamous cell. Identification of one or more of the following- the organisms nucleus, cytoplasmic eosinophilic granules, or flagella (less often seen in conventional smears) is necessary in order to distinguish trichomonads from cytoplasmic fragments.


[Back to Listing]
Definitions of terms used in this site