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Practical approach to linear EUS examination of the liver

1 Department of Internal Medicine, Division of Gastroenterology, Kasr Al-Aini School of Medicine, Cairo University, Cairo, Egypt
2 Department of Tropical Medicine and Gastroenterology, Assiut University, Assiut, Egypt
3 Department of Tropical Medicine, Zagazig University, Zagazig, Egypt
4 Department of Internal Medicine, Gastroenterology Unit, Assiut University, Assiut, Egypt
5 Department of Internal Medicine, Hepatology and Gastroenterology Unit, Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt
6 Department of Internal Medicine, Cardiology, Gastroenterology and Endocrinology, Hospital of the Ministry of Interior and Administration, Szczecin, Poland

Correspondence Address:
Hussein Hassan Okasha,
Department of Internal Medicine, Division of Gastroenterology, Kasr Al-Aini School of Medicine, Cairo University, Cairo
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/EUS-D-20-00162

PMID: 33904508

EUS has become a substantial diagnostic and therapeutic modality for digestive tract conditions. The extent of endosonographic assessment is wide, and, among others, it allows for the evaluation of liver anatomy and related pathologies. Moreover, EUS assessment has proved more accurate in detecting small focal liver lesions missed by standard imaging examinations such as computed tomography or magnetic resonance. Endosonographically, various liver segments can be visualized by transgastric and transduodenal scanning following anatomical landmarks, thus providing arranged systematic examination. In addition, knowledge considering the correct position during examination is crucial for EUS-guided procedures such as hepaticogastrostomy, ablation of tumors, and measurement of portal pressure gradient. The evolution of EUS-guided intervention has contributed to the increasing importance of understanding the hepatic segmental anatomy during the EUS examination.

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