Case 61.  Eurytremiasis (pancreatic fluke) (57 y-o F)
　 　 　 　 　
　 　 Pancreas surgically resected under suspicion of cancer in a farmer housewife in Kyushu, complaining of abdominal pain for 3 months 　 　
　 　 　 　 　
　 　
Key words :  Eurytrema pancreaticum, pancreas duct ectasis
 　 　
　 　 　 　 　
　 　
zoonosis
 　 　
　 　 　
　
　 　 　
The main pancreatic duct is dilated, and contained three translucent yellowish-brown flukes. 　 Histologically, the pancreatic duct is dilated, and shows squamous metaplasia and lymphoid follicle formation (HE). Eosinophilia is not seen.
　 　 　
　
　 　 　
Eurytrema pancreaticum obtained from the pancreatic duct of the cow
Translucent 1 cm pancreatic flukes show a distinct oral sucker and spiral-structured uterus filled with pigmented ova.　The infestation occurs when the patient accidentally ingests a glasshopper infected with metacercaria.		 　 Eurytrema pancreaticum obtained from the pancreatic duct of the cow (HE)
Histologically, both sperm-filled testis and the uterus containing pigmented ova are recognized around the excretory duct.　The pancreatic fluke parasitizes the pancreatic and bile duct of the ruminant (cow, buffalo, sheep, goat and camel).