[Fasciola hepatica infection acquired in Denmark].

In this case report, a 64-year-old woman with symptoms of lethargy, nausea, fluctuating temperature, and weight loss was suspected of a disease of cardiological or haematological aetiology. She was diagnosed with liver fluke infection based on serological evidence, eosinophilia, relevant exposure, and clinical presentation. High-dose triclabendazole led to symptom resolution. On several occasions, she had been eating watercress from a meadow with grazing sheep. The tendency of eating raw watercress and other green plants collected in nature confers an increased risk of developing liver fluke infections.