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pCLE highlights distinctive vascular patterns in early gastric cancer and in gastric diseases with high risk of malignant complications
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pCLE highlights distinctive vascular patterns in early gastric cancer and in gastric diseases with high risk of malignant complications
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Journal Article
pCLE highlights distinctive vascular patterns in early gastric cancer and in gastric diseases with high risk of malignant complications
2021
Overview
Endoscopy is widely used to detect and diagnose precancerous lesions and gastric cancer (GC). The probe-based Confocal Laser Endomicroscopy (pCLE) is an endoscopic technique suitable for subcellular resolution and for microvasculature analyses. The aim of this study was to use pCLE to identify specific vascular patterns in high-risk and early stage GC. Mucosal architecture, vessel tortuosity, enlargements and leakage were assessed in patients with autoimmune gastritis and early gastric cancer (EGC). We were able to stratify gastritis patients by identifying distinct vascular profiles: gastritis was usually associated with increased vascularization characterized by a high number of tortuous vessels, which were also found in atrophic autoimmune disease. Leaky and tortuous vessels, distributed in a spatially irregular network, characterized the atrophic metaplastic mucosa. The mucosal vasculature of EGC patients displayed tortuous vessels, but unlike what detected in atrophic gastritis, they appeared patchy, as is in neoplastic gastric tissue. Very importantly, we detected vascular changes even in areas without lesions, supporting the contention that vascular alterations may provide a favorable microenvironment for carcinogenesis. This report confirms that pCLE is a valid endoscopic approach to improve the definition of patients with malignant lesions or at increased risk for GC by assessing vascular changes.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 692/4020
/ 692/4028
/ 692/499
/ Adult
/ Aged
/ Female
/ Gastric Mucosa - blood supply
/ Gastritis, Atrophic - pathology
/ Humanities and Social Sciences
/ Humans
/ Lesions
/ Male
/ Mucosa
/ Neovascularization, Pathologic - pathology
/ Precancerous Conditions - pathology
/ Science
/ Stomach Neoplasms - blood supply
