CBC: Leukocytosis, anemia, eosinophilia
Elevated ESR and LFT
Stool ova and parasites, culture
Microscopy
Endoscopy or surgery, biopsy
Serology (ELISA), PCR
CT abdomen, US, ERCP, cholangiography, MRI
Fasciola hepatica
Amebiasis, larva migrans, cysticercosis, ascariasis, hepatitis, parasitic infection
Opisthorchis viverrini
Biliary atresia, cholecystitis, cholelithiasis, cholestasis
Clonorchis sinensis
Taenia saginata
Toxocara canis
Taenia solium 