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片形吸虫病(fascioliasis)是由片形属的肝片形吸虫(Fasciola hapatica)和大片形吸虫(Fasciola gigantica)等片形吸虫感染引起的一类人兽共患寄生虫病"[1,2]。虫体主要寄生于人体肝脏,急性期主要表现为突发高热、腹痛,常伴有腹胀、呕吐、腹泻或便秘等消化道症状,肝脾大、腹水、贫血等。患者的急性期症状减退或消失后,数月或数年内可无明显不适,或有胃肠道轻度不适。此期病变可逐渐向慢性期过渡。慢性期(又称成虫阻塞期)为成虫长期寄生于肝内胆管,引起胆管炎、胆囊炎和胆管上皮增生等为主要病变基础的一系列临床表现。
Fascioliasis is a group of zoonotic parasitic diseases caused by the infection of Fasciola hapatica and Fasciola gigantica [1, 2] .The parasitic body mainly parasitic in the human liver, mainly in the acute phase of sudden high fever, abdominal pain, often accompanied by abdominal distension, vomiting, diarrhea or constipation and other gastrointestinal symptoms, hepatosplenomegaly, ascites, anemia, etc. Patients with acute phase Symptoms diminish or disappear after several months or years without significant discomfort, or mild gastrointestinal discomfort during this period of disease may gradually transition to chronic phase. Chronic phase (also known as adult obstruction) for the long-term adult parasites in the liver Internal ducts, causing cholangitis, cholecystitis and bile duct epithelial hyperplasia as the main basis for a series of clinical manifestations.