engleski

Anatomical distribution of Fascioloides magna pseudocysts in the red deer (Cervus elaphus) livers

Introduction: Digenean trematode Fascioloides magna is primarily a parasite of North American deer species. It was introduced to Europe in the second half of the 19th century by uncontrolled import of non-native deer species from America. The European red deer (Cervus elaphus) represents a definitive host in which it forms a pseudocyst around the fluke. The aim of this study was to present the anatomical distribution of pseudocysts in the red deer liver. Materials and Methods: 50 red deer livers were divided into three equally wide parts, cut into 2 cm thick slices, and thoroughly examined. Observing liver on facies diaphragmatica, the left third comprised lobus hepatis sinister, the middle third is lobus quadratus, lobus caudatus, and dorsal part of lobus hepatis sinister, while the right third is lobus hepatis dexter and caudolateral part of lobus quadratus. Results: The highest average number of pseudocysts (13) was found in the middle part (1 to 56), followed by left (6.3 ; 0-15), and right one (5.4, 0-12). In the majority of samples, pseudocysts were located in the middle part (76%), followed by left (14%) and right part (10%). In 16% of the samples, pseudocysts were found only in the middle part of the liver. In the largest number of samples (40%) most pseudocysts were found in the middle third, then in the right and left third. Conclusion: Results of this study indicate that primary site of infection is in the middle third of the liver, followed by right and left one with increasing infection.

Fascioloides magna, red deer, liver pseudocyst

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