Parasite of the Month in our February issue: #Crassiphiala #bulboglossa, a #trematode causing #blackspot disease in #freshwater #fishes across the #Nearctic, by Vasyl Tkach & Tyler Achatz. @uofnorthdakota.bsky.social

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This is a photo of a fluke, a parasitic flatworm. This is Fascioloides magna, the large liver fluke. It has been cleared giving it an overall golden brown appearance with a clearly delineated GI tract. The oral sucker is visible at the apex of the anterior end. the ventral sucker is visible just behind it. The worm was provided by Dr. Lauren Camp. The photos are mine.

A beautiful cleared example of Fascioloides magna that was submitted to the vet school. The large liver fluke leads to condemnation of beef livers and can cause significant disease in sheep and goats. I see it in white-tailed #deer, who don't seem affected.

#veterinary #parasitology #trematode

#Fasciola #hepatica Dx serology as egg production by adult flukes is scanty & intermittent. This is the only #trematode infection for which praziquantel is not the drug of choice. #Triclabendazole is the recommended treatment.

The slide depicts a section of pancreas with a central pancreatic duct that is filled by multiple sections of small flatworms. It is hard to see much detail in the worms at this magnification, but the fibrous connective tissue around the pancreatic duct might be a bit thick.

Two sections of flukes (trematodes). The bottom fluke is in a transverse section. It contains multiple pigmented oval eggs and the paired ceca (stars), part of it's digestive tract are visible on either side. The fluke at the top of the image is sectioned more obliquely, but the eggs and the paired sections of the digestive tract are still visible. The section of this fluke also shows a testis (arrow). Flukes are hermaphroditic.

Several longitudinal sections of flukes are on this slide. At least one sucker is visible in all of them. A fluke to the lef side of the image is sectioned down the middle so that the profile looks like the head of a person. The sucker is cut in such a way that it looks like a giant mouth opened wide.

Here is a cool #histopathology slide to take your mind off the worries of the world! Eurytrema procyonis (a fluke for those wondering) in the pancreatic duct of a #raccoon. This #trematode is pretty well host adapted and is usually an incidental finding.

#VetPath #PathSky #Parasite

This is a large liver fluke (Fascioloides magna) that has been made translucent (cleared) so that internal organs are visible. The worm is lanceolate or leaf shaped with a narrower end at the top (the head). A small cup shaped structure (oral sucker) is present on the tip of the head. A round structure (the ventral sucker) is a short distance back from the oral sucker. Overall the worm is dark yellow. Along each side of the body a long dark tube extends toward the caudal end of the worm and many branches extend from this towards the sides of the worm. Dr. Lauren Camp provided the worm. I took the photo.

Everybody seems to have a weekday theme, so I'm calling this wormy Wednesday!

This is a very nicely cleared Fascioloides magna from a cow. I think the branching structures are the intestinal tract.

Even flukes can be beautiful!

#parasite #parasitology #veterinary #trematode