Case 152. Enterobius vermicularis in vagina (4 y-o F)
A small helminth obtained from the vagina of a kindergarden girl
Key words : Enterobius vermicularis
Stereo microscopic observation of a female adult of Enterobius vermicularis after formalin fixation.   The esophagus of the pinworm is of rhabditis type, and the esophageal bulb can be recognized at the esophagoenteric junction (stereo microscopy, higher power).
The persimmon seed-shaped ova in the uterus contain an actively moving immature larva even after formalin fixation for 2 days (stereo microscopy).   Histologic section of the ova of Enterobius vermicularis (HE). The immature larvae within the ova show deep basophilia.