2nd August 2023

A 47-year-old presents with right upper quadrant pain, fever, diarrhoea and vomiting.

A 47-year-old presents with right upper quadrant pain, fever, diarrhoea and vomiting. She recently returned from a holiday in Japan, where she ate sushi for the first time. Abdominal examination is Murphy’s sign positive. Blood tests show a raised eosinophil count and a raised ALP and GGT. Stool microscopy reveals parasitic eggs.

What is the most likely cause?

Select the SINGLE most appropriate option from the list below. Select ONE option only.