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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Gastrointest Endosc. May 16, 2026; 18(5): 119573
Published online May 16, 2026. doi: 10.4253/wjge.v18.i5.119573
Absent inferior vena cava combined with idiopathic noncirrhotic portal hypertension resulting esophagogastric variceal bleeding: A case report
Meng Li, Lei-Kang Zhang, Lei Qu, Jin-Hong Liu, Jia-Jia Liu, Suo-Zhu Sun, Dan Zhang, Ning-Bo Hao, Chang-Zheng Li
Meng Li, Jia-Jia Liu, Dan Zhang, Ning-Bo Hao, Chang-Zheng Li, Department of Gastroenterology, Chinese People’s Liberation Army Rocket Force Characteristic Medical Center, Beijing 100088, China
Lei-Kang Zhang, Lei Qu, Department of Radiation, Chinese People’s Liberation Army Rocket Force Characteristic Medical Center, Beijing 100088, China
Jin-Hong Liu, Suo-Zhu Sun, Department of Pathology, Chinese People’s Liberation Army Rocket Force Characteristic Medical Center, Beijing 100088, China
Co-corresponding authors: Ning-Bo Hao and Chang-Zheng Li.
Author contributions: Li M, Liu JJ, and Zhang D contributed to the conception of the work, data analysis, and drafting of the manuscript; Zhang LK and Qu L were responsible for the collection, interpretation, and 3D reconstruction of the imaging data; Liu JH and Sun SZ were responsible for the acquisition and analysis of the pathological data; Hao NB and Li CZ supervised the entire project, critically revised the manuscript for important intellectual content, and serve as corresponding authors, taking responsibility for all aspects of the work; and all authors reviewed and approved the final version of the manuscript.
Informed consent statement: Written informed consent was obtained from the patient for the publication of this case report, including all clinical details and any accompanying images.
Conflict-of-interest statement: All authors declare that they have no conflict of interest to disclose.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
AI contribution statement: DeepSeek was used for language polishing, translation, and writing assistance, but without data analysis.
Corresponding author: Chang-Zheng Li, MD, Department of Gastroenterology, Chinese People’s Liberation Army Rocket Force Characteristic Medical Center, No. 16 Xinjiekouwai Street, Xicheng District, Beijing 100088, China. licz007@aliyun.com
Received: February 2, 2026
Revised: March 11, 2026
Accepted: March 30, 2026
Published online: May 16, 2026
Processing time: 101 Days and 18.2 Hours
Abstract
BACKGROUND

Congenital anomalies of the inferior vena cava (IVC) are rare vascular abnormalities that are often asymptomatic but may lead to long-term alterations in venous hemodynamics. Idiopathic noncirrhotic portal hypertension (INCPH), currently classified within the spectrum of porto-sinusoidal vascular disease, is characterized by portal hypertension in the absence of cirrhosis and with preserved hepatic function. The coexistence of congenital IVC anomalies and INCPH is rarely reported.

CASE SUMMARY

A 71-year-old female presented with recurrent gastrointestinal bleeding for more than one year. Endoscopic examination revealed large esophagogastric varices. Contrast-enhanced computed tomography demonstrated absence of the hepatic segment of the IVC with azygos continuation. Laboratory testing showed preserved liver function and normal platelet counts. Liver biopsy revealed obliterative portal venopathy consistent with INCPH. The patient underwent endoscopic variceal ligation and recovered without recurrent bleeding during follow-up.

CONCLUSION

This case highlights the diagnostic complexity of INCPH in patients with congenital IVC anomalies. Long-standing hemodynamic alterations associated with IVC abnormalities may contribute to intrahepatic vascular remodeling and the development of portal hypertension, although a direct causal relationship remains uncertain.

Keywords: Esophagogastric varices; Idiopathic noncirrhotic portal hypertension; Inferior vena cava abnormalities; Obliterative portal venopathy; Portal hypertension; Case report

Core Tip: Inferior vena cava anomalies may induce non-cirrhotic portal hypertension by increasing portal venous inflow via abnormal hemodynamics, leading to variceal bleeding. Diagnosis requires exclusion of cirrhosis, supported by patent hepatic veins and liver biopsy showing obliterative portal venopathy. Splenomegaly/pancytopenia are not obligatory. Endoscopic therapy effectively controls bleeding, but long-term monitoring is essential.

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