This week's case comes from my lab with photos and video taken by Emily Fernholz. The objects shown were seen in a liver cyst aspirate. Identification?
Low power view (4x objective):
40x objective:
Here's a fun 'bird's eye' view (hit the play button twice):
E.granulosus
ReplyDeleteEchinococcus spp.
ReplyDeleteProtoscoleces of Echinococcus granulosus.
ReplyDeleteHydatid sand of E. granulosas. Beautifully captured.
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I agree with my predecessors: hydatid sand of Echinococcus granulosus.
ReplyDeleteGreat pictures.
Luis.
Agree with hydatid sand (immature protoscolices)and an extruded protoscolex (young worm).
ReplyDeleteEchinococcus sp
ReplyDeleteI agree with Bernardino we are seeing protoscolicies as well as extruded scolex of young worms of the genus Echinococcus. The photos present some beautiful examples of calcareous corpuscles (classic feature of tapeworm tissue)
ReplyDeleteThere are 4 species of Echinococcus that infect humans: E. granulosus, E. multilocularis, E. vogeli, and E. oligarthus. Without more information such as host location, medical imaging, measurement of rostellar hooklets, one cannot be certain of the species. However one can make an educated guess.
E. mulilocularis cysts are sterile (no protoscoicies), E. oligarchs is exceedingly rare in humans, E. vogeli photoscolicies contain very few calcareous corpusles, leaving E. grandulosis as the best guess.
Multilocular hydatid cysts of E. granulosus
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