Clonorchiasis

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Clonorchiasis

ORPHA:658917Disease

What it is

A rare parasitic disease characterized by infection with the trematode Clonorchis sinensis (Chinese or oriental liver fluke) through ingestion of metacercarial cysts via infected raw or undercooked fish. Clinical symptoms are related to worm burden. Most acute infections are asymptomatic or present with mild abdominal symptoms. Patients with high worm burdens experience fever, headache, right upper-quadrant abdominal pain, and intermittent colic pain caused by the worms obstructing the gallbladder. Chronic infections are usually severe, resulting in fibrosis of small bile ducts and destruction of the adjacent liver parenchyma, and strongly associated with cholangiocarcinoma.

Key facts

Inheritance
Not applicable
Classified as
Disease

ICD-10 codes

B66.1ICD-10 names this disease exactly — shared with 1 other rare disease

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references

MEDDRA 10009344MONDO 0005705MONDO 5705UMLS C0009021

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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