ABSTRACT

This international, multidisciplinary consensus report represents the first effort to systematically define and characterize fatty pancreas. A key outcome of this endeavor was the recommendation to adopt “fatty pancreas” as the standardized and inclusive term to describe all forms of fat accumulation in the pancreas. This terminological consensus provides a critical foundation for unified reporting and clinical communication. Another major contribution of the report is the consensus on diagnostic imaging findings, which was based on radiological and endoscopic modalities. The proposed criteria aim to enhance consistency in clinical assessment and support the development of standardized research protocols. In addition to establishing terminology and diagnostic frameworks, the report also synthesizes current knowledge across a wide range of relevant domains. These include the etiology and epidemiology of fatty pancreas, as well as its associations with alcohol consumption, smoking, acute and chronic pancreatitis, pancreatic exocrine insufficiency, type 2 diabetes mellitus, and surgical outcomes. The potential links between fatty pancreas and neoplastic conditions such as intraductal papillary mucinous neoplasms and pancreatic cancer are also addressed, alongside the current understanding of its metabolic implications (beta-cell function and glucose homeostasis) and treatment strategies. Throughout the consensus process, a consistent theme emerged: the limited availability of high-quality, prospective clinical data. Therefore, many of the recommendations in this report are based on expert consensus rather than strong empirical evidence. As such, the statements require rigorous prospective validation before they can be adopted into routine clinical practice. This underscores a critical need for further research, particularly studies aimed at clarifying causal relationships, validating diagnostic tools, and determining the clinical relevance of fatty pancreas across diverse patient populations. This report serves as both a summary of our current understanding and a roadmap for future investigations, aiming to close existing knowledge gaps and guide evidence-based clinical practice in this emerging field.

Summary

Vascular diseases of the liver include portal vein thrombosis (with or without cirrhosis), portosinusoidal vascular disorder, Budd-Chiari syndrome, sinusoidal obstruction syndrome, non-obstructive sinusoidal dilatation and peliosis, splanchnic artery aneurysms, and hepatic arteriovenous fistulas. Except for portal vein thrombosis in cirrhosis, these are all rare conditions. Since the last Clinical Practice Guidelines were issued by the European Association for the Study of the Liver in 2016, much data has been published on the diagnosis and management – medical and interventional – of patients with vascular liver diseases. Based on a thorough review of the relevant literature, recommendations are provided to address key clinical dilemmas. The document emphasises personalised care, considering individual risk factors and clinical presentation. Multidisciplinary management involving hepatologists, haematologists, pathologists, interventional radiologists and surgeons is essential in this area. Our aim is to provide guidance on the management of patients with vascular liver diseases based on the best available evidence.