Journal
JOURNAL OF PERSONALIZED MEDICINE
Volume 13, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/jpm13071029
Keywords
Crohn's disease; creeping fat; fat wrapping; adipose tissue; mesenteric adipose tissue; histological characteristics; imaging data; artificial intelligence
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During the progression of Crohn's disease, mesenteric adipose tissue responds to inflammatory mediators and bacterial invasion, resulting in the formation of creeping fat. This review discusses the features of creeping fat and the histological evidence of its importance. Recent advances in radiological assessment of creeping fat in Crohn's disease are also reported, with improved visualization and quantification of adipose tissue depots. Visceral fat has shown significant correlation with various outcomes in Crohn's disease.
During the course of Crohn's disease, the response of mesenteric adipose tissue to the production of inflammatory mediators and bacterial invasion through the intestinal mucosa results in the formation of creeping fat. Creeping fat describes the arresting finger-like projections that surround the inflamed bowel. In this review, the microscopic and macroscopic features of creeping fat and histological evidence for the importance of this tissue are discussed. Moreover, the most recent insights into the radiological assessment of creeping fat in patients with Crohn's disease are reported. Advances in imaging techniques have revolutionized the possibility of visualization and quantification of adipose tissue depots with excellent accuracy. Visceral fat has been significantly correlated with various Crohn's-disease-related outcomes. Despite the difficulties in distinguishing physiologic perienteric fat from creeping fat, the growing interest in fat-wrapping in Crohn's disease has rejuvenated radiologic research. With regard to the noninvasive fat-wrapping assessment, a novel CT enterography-based mesenteric creeping fat index has been developed for the mitigation of the confounding effect of normal retroperitoneal and perienteric adipose tissue. Research on machine learning algorithms and computational radiomics in conjunction with mechanistic studies may be the key for the elucidation of the complex role of creeping fat in Crohn's disease.
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