INTRODUCTION: Helicobacter pylori (Hp)-related atrophic gastritis (AG) affects corpus and antral mucosa, resulting in multifocal AG (MF-AG); autoimmunity-driven AG is corpus-restricted (CR-AG). AG carries increased gastric dysplasia (GD) and gastric cancer (GC) risk, well established in MF-AG, but debated in CR-AG. This study aimed to assess clinical, endoscopic-histological characteristics of GD-GC in patients with MF-AG and CR-AG. METHODS: This was the multicenter cross-sectional study across 11 Italian gastroenterology centers on data of non-cardia GD-GC in adult patients with MF-AG or CR-AG based on clinical, endoscopic, and histological charts. RESULTS: Eighty-four patients were included with MF-AG and CR-AG in 45 (53.6%) and 39 (46.4%), respectively. Low-grade GD, high-grade GD, and GC were diagnosed in 31 (36.9%), 6 (7.1%), and 47 (56.0%), respectively. GD-GC similarly occurred in patients with MF-AG and CR-AG: high-grade GD in 4 (8.9%) vs 2 (5.1%), low-grade GD in 17 (37.8%) vs 14 (35.9%), and GC in 24 (53.5%) vs 23 (59.0%) (P > 0.05). Compared with MF-AG, in patients with CR-AG, GD-GC were more commonly polypoid (51.6% vs 27.3%, P = 0.048) and more frequent in the corpus (55.3% vs 28.6%, P = 0.02), but occurred also in the antrum (34.2%) and incisura (10.5%). Surgery was more frequent in CR-AG than in MF-AG (48.6% vs 23.1%, P = 0.02). Corpus atrophy severity and intestinal metaplasia were not different (P > 0.05), histological Hp positivity was low in both (2.3% vs 2.9%, P = 0.87), but in Hp negatives, active inflammation was present in the antrum in 26.7% and 7.7% (P = 0.02), and in the corpus in 31.1% and 21.5% (P = 0.27). DISCUSSION: Non-cardia GC and GD may occur in both MF-AG and CR-AG, displaying differences in topography and endoscopic presentation but similarities in nonlesional mucosa, differentiation, and staging. Surveillance should be considered in corpus AG, regardless of extension and supposed etiology.
Clinical and Endoscopic-Histological Features of Multifocal and Corpus-Restricted Atrophic Gastritis Patients With Non-Cardia Gastric Cancer or Dysplasia: A Multicenter, Cross-Sectional Study
Rossi, Roberta Elisa;
2025-01-01
Abstract
INTRODUCTION: Helicobacter pylori (Hp)-related atrophic gastritis (AG) affects corpus and antral mucosa, resulting in multifocal AG (MF-AG); autoimmunity-driven AG is corpus-restricted (CR-AG). AG carries increased gastric dysplasia (GD) and gastric cancer (GC) risk, well established in MF-AG, but debated in CR-AG. This study aimed to assess clinical, endoscopic-histological characteristics of GD-GC in patients with MF-AG and CR-AG. METHODS: This was the multicenter cross-sectional study across 11 Italian gastroenterology centers on data of non-cardia GD-GC in adult patients with MF-AG or CR-AG based on clinical, endoscopic, and histological charts. RESULTS: Eighty-four patients were included with MF-AG and CR-AG in 45 (53.6%) and 39 (46.4%), respectively. Low-grade GD, high-grade GD, and GC were diagnosed in 31 (36.9%), 6 (7.1%), and 47 (56.0%), respectively. GD-GC similarly occurred in patients with MF-AG and CR-AG: high-grade GD in 4 (8.9%) vs 2 (5.1%), low-grade GD in 17 (37.8%) vs 14 (35.9%), and GC in 24 (53.5%) vs 23 (59.0%) (P > 0.05). Compared with MF-AG, in patients with CR-AG, GD-GC were more commonly polypoid (51.6% vs 27.3%, P = 0.048) and more frequent in the corpus (55.3% vs 28.6%, P = 0.02), but occurred also in the antrum (34.2%) and incisura (10.5%). Surgery was more frequent in CR-AG than in MF-AG (48.6% vs 23.1%, P = 0.02). Corpus atrophy severity and intestinal metaplasia were not different (P > 0.05), histological Hp positivity was low in both (2.3% vs 2.9%, P = 0.87), but in Hp negatives, active inflammation was present in the antrum in 26.7% and 7.7% (P = 0.02), and in the corpus in 31.1% and 21.5% (P = 0.27). DISCUSSION: Non-cardia GC and GD may occur in both MF-AG and CR-AG, displaying differences in topography and endoscopic presentation but similarities in nonlesional mucosa, differentiation, and staging. Surveillance should be considered in corpus AG, regardless of extension and supposed etiology.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
