Atrophic and Metaplastic Progression in the Background Mucosa of Patients with Gastric Adenoma

• Published in: PloS one 2017-01, Vol.12 (1), p.e0169456-e0169456
• Main Authors: Na, Hee Kyong, Cho, Charles J, Bae, Suh Eun, Lee, Jeong Hoon, Park, Young Soo, Ahn, Ji Yong, Kim, Do Hoon, Choi, Kee Don, Song, Ho June, Lee, Gin Hyug, Jang, Se Jin, Jung, Hwoon-Yong
• Format: Article
• Language: English
• Subjects: Adenoma; Adenoma - etiology; Adenoma - metabolism; Adenoma - pathology; Aged; Atrophy; Biology and Life Sciences; Biomarkers; Biopsy; Care and treatment; Curvature; Development and progression; Disease Progression; Dysplasia; Endoscopy; Female; Follow-Up Studies; Gastric cancer; Gastric Mucosa - metabolism; Gastric Mucosa - pathology; Gastrin; Gastrins - metabolism; Gastritis; Gastritis, Atrophic - metabolism; Gastritis, Atrophic - pathology; Ghrelin; Helicobacter pylori; Histology; Humans; Internal medicine; Intestine; Invasiveness; Male; Medical screening; Medicine; Medicine and Health Sciences; Metaplasia; Middle Aged; Mucosa; Mucous membrane; Multivariate analysis; Neoplasms, Second Primary - etiology; Neoplasms, Second Primary - metabolism; Pathology; Patients; Pepsinogen C - metabolism; Physiological aspects; Quality; Risk Factors; Stomach cancer; Stomach Neoplasms - etiology; Stomach Neoplasms - metabolism; Stomach Neoplasms - pathology; Surveillance; Tumors
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0169456

In patients with adenoma, assessing premalignant changes in the surrounding mucosa is important for surveillance. This study evaluated atrophic and metaplastic progression in the background mucosa of adenoma or early gastric cancer (EGC) cases. Among 146 consecutive patients who underwent endoscopic resection for intestinal-type gastric neoplasia, the adenoma group included 56 patients with low-grade dysplasia and the ECG group included 90 patients with high-grade dysplasia or invasive carcinoma. For histology, 3 paired biopsies were obtained from the antrum, corpus lesser curvature (CLC), and corpus greater curvature (CGC). Serological atrophy was determined based on pepsinogen A (PGA), progastricsin (PGC), gastrin-17, and total ghrelin levels. Topographic progression of atrophy and/or metaplasia was staged using the operative link on gastritis assessment (OLGA) and operative link on gastric intestinal metaplasia assessment (OLGIM) systems. Rates of moderate-to-marked histological atrophy/metaplasia in patients with adenoma were 52.7%/78.2% at the antrum (vs. 58.8%/76.4% in EGC group), 63.5%/75.0% at the CLC (vs. 60.2%/69.7% in EGC group), and 10.9%/17.9% at the CGC (vs. 5.6%/7.8% in EGC group). Serological atrophy indicated by PGA and PGC occurred in 23.2% and 15.6% of cases in the adenoma and ECG groups, respectively (p = 0.25). Mean serum gastrin-17 concentrations of the adenoma group and EGC group were 10.4 and 9.0 pmol/L, respectively (p = 0.54). Mean serum total ghrelin levels were 216.6 and 209.5 pg/mL, respectively (p = 0.71). Additionally, between group rates of stage III-IV OLGA and OLGIM were similar (25.9% vs. 25.0%, p = 0.90; 41.8% vs. 44.9%, p = 0.71, respectively). Atrophic and metaplastic progression is extensive and severe in gastric adenoma patients. A surveillance strategy for metachronous tumors should be applied similarly for patients with adenoma or EGC.