Non-endemic Clonorchis sinensis infection is challenging to diagnose. The present study reports the case of a 40-year-old female patient with severe epigastric pain, initially suspected to be a liver lesion, who was admitted to The Affiliated Hospital of Zunyi Medical University (Zunyi, China). A combination of diagnostic procedures, including computed tomography and magnetic resonance imaging, revealed an abnormality in the left hepatic lobe. Postoperative evaluation and the epidemiologic history of the patient (consumption of raw fish slices) revealed characteristics of Clonorchis sinensis infection, including chronic bile duct inflammation and eosinophilic liver infiltration. The present case highlights the unexpected emergence of this disease outside of recognized endemic areas and advocates clinical vigilance. Even in non-endemic areas, individuals should be reminded not to eat raw fish and shrimp.
Keywords: Charcot-Leyden crystals; Clonorchis sinensis; diagnosis; eosinophilic liver infiltration; non-endemic area.
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