Long-term Follow-up of a Patient with Portal Hypertension and Hepatic Failure Due to Hepatic Hydatid Disease

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We observed liver failure with a presumed etiology of echinococcosis in an 89-year-old woman. Our patient had been born and then resided on Rebun Island until she was 12 years old. At 46 years old, she had been referred to our hospital due to right abdominal pain. Ultrasound had revealed multilocular cysts in the right lobe of the liver. At 84 years old, the hepatic cyst occupied nearly the entire liver with ring-shaped calcification along the cyst wall. The patient was diagnosed with decompensated cirrhosis and hepatic hydatid disease based on typical imaging and the long-term natural clinical course.