The mother of a 5 year-old Belgian patient brought in a small worm-like structure (measuring 12 mm in length) along with a fecal sample. Microscopic examination of the worm-like structure using low power magnification revealed the following:
Check out these cool videos (you may need to press play twice)
Pin worm - Enterobius vermicularis
ReplyDeleteAgree, note the alae (I think that is the term for the wing like structures next to the mouth on the adult worm) and then the characteristic D shaped egg.
ReplyDeleteEnterobius vermicularis , female (pinworm)
ReplyDeleteEnterobius vermicularis: egg is oblong with flatter side. adult has a very tapered tail ending in a pin.
ReplyDeleteEnterobius vermicularis eggs and female adult worm according to size of about 12 mm and anterior end morphology showing alae and bulbar esophagus
ReplyDeleteA classic case of anal pruritus, the cephalic alae, typical esophageal build and a flattened sided egg, all point to the usual culprit being Enterovirus vermicularis female.
ReplyDeleteFlorida Fan.
Did you all see the video clips? They're really neat! For some reason you have to click on them twice to get them to play on my computer. I'll upload them to YouTube if others are having this same problem.
ReplyDeleteBobbi
Certainly Dr. Pritt, the larva is moving inside the egg. The second video clip also shows a swimming larva, most likely newly hatched. This is perhaps the best example of an autoinfection by hatching and re-entry of larvae up the excretory path.
ReplyDeleteFlorida Fan
Yes, classic Enterobius vermicularis. I cannot add anything that has not already been said. Nice pics.
ReplyDeleteEnterobius vermicularis :)
ReplyDeleteExactly the decorations on Blaine's costume last Halloween. What a coincidence.
ReplyDeleteFlorida Fan
enterobius vermicularis.
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