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Abstract

Dicrocoelium dentriticum, a member of trematode type helminths, is a liver parasite of ruminants. Humans are infected accidentally by ingestion of intermediate host, through infected ants via eating of raw vegetables or drinking of contaminated water. Infection is often asymptomatic or results in subtle symptoms; therefore, infections are usually unrecognized. However, it can produce chronic cholangitis and swelling or adenomatous proliferation in the bile ducts and lead to abdominal pain, diarrhea, fatigue, jaundice, and other symptoms. We report a 49-year-old female patient with end-stage hepatic cirrhosis from viral hepatitis B and D coinfection who underwent liver transplant. Shortly after transplant, she developed symptoms suggesting an obstructed biliary duct. Liver needle biopsy was done 24 hours after transplant to rule out rejection. Biopsy of her explanted liver was also examined pathologically. Microscopic examination of the liver needle biopsy ruled out rejection. Prepared sections of explanted liver revealed a helminth in the common bile duct. Morphologic reconstruction of helminth by microscopic findings and consultation with an expert parasitologist supported the diagnosis of Dicrocoelium dentriticum.

Endoparasites and vector-borne pathogens in dogs from Greek islands: Pathogen distribution and zoonotic implications

“…dentriticum a trematode commonly found in the liver of ruminants, were found in one dog. While in some cases this parasite can infect other mammals, including dogs and humans [31, 32], it is plausible that pseudoparasitism is the cause of this finding [33].…”

New molecular data help clarify the taxonomy of Central European avian Dicrocoeliidae Looss, 1899 (Trematoda: Plagiorchiida)

“…Adults are typically found in the bile ducts and gallbladders of Amniota ( Pojmańska, 2008 ). Some species are economically important parasites ( Otranto and Traversa, 2003 ; Scala et al, 2019 ; de Sousa et al, 2021 ) and causative agents of zoonoses ( Azmoudeh-Ardalan et al, 2017 ; Atas, 2020 ; Lavilla-Salgado et al, 2021 ). The systematics of Dicrocoeliidae are controversial.…”