Diagnostic Findings [Last Modified: ]
Enterobiasis
[Enterobius vermicularis]
Causal Agent Life Cycle Geographic Distribution Clinical Features Laboratory Diagnosis Treatment

Microscopy

Enterobius egg Enterobius eggs Enterobius eggs
A B C

A, B: Enterobius egg(s).  Eggs measure 50 to 60 µm by 20 to 32 µm.
C: Enterobius eggs on cellulose tape prep.

E. vermicularis adult, anterior end
D

D: Anterior end of Enterobius vermicularis adult worm.

E. vermicularis in appendix cross-section E. vermicularis in appendix cross-section E. vermicularis eggs in appendix cross-section
E F G

E, F, G: Cross-section of human appendix containing Enterobius vermicularis.  Eggs can be seen in Figure G.
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