Gastric Polyp Management and Clinical Implications

Gastric polyps are discrete mucosal lesions detected in a minority of upper gastrointestinal endoscopies but carry significant clinical implications owing to their varied histological subtypes and potential for malignant progression. Hyperplastic polyps and fundic gland polyps account for the majority of findings, while adenomas and neuroendocrine lesions are less frequent but raise concerns regarding dysplasia and neoplastic transformation. Management strategies centre on risk stratification by size, morphology and background mucosal pathology, particularly Helicobacter pylori status and autoimmune metaplastic atrophic gastritis. Endoscopic resection techniques, ranging from forceps polypectomy to mucosal resection and submucosal dissection, enable both definitive histological diagnosis and curative treatment of dysplastic or early neoplastic lesions. Surveillance intervals are tailored to the completeness of resection and histopathological features, with close monitoring for recurrence or emergence of new polyps. Globally, integration of serological markers, endoscopic imaging and standardised classification systems underpins a precision approach that balances procedural risks against the need to intercept early gastric neoplasia.

Research from Nature Portfolio

Recent studies have delineated serological and endoscopic predictors of neoplastic transformation in hyperplastic lesions. Analysis of patient cohorts undergoing endoscopic or surgical excision of hyperplastic polyps revealed that features such as a strawberry-like appearance with focal erosions and a history of anaemia significantly increase the odds of dysplastic evolution. Positive parietal cell antibody titres and hypergastrinemia were also more prevalent among those polyps harbouring neoplasia, underscoring the role of autoimmune metaplastic atrophic gastritis in driving malignant change. In parallel, large-scale epidemiological screening across upper gastrointestinal endoscopies has charted detection rates of incidental polyps and refined follow-up algorithms, emphasising the necessity of tailored surveillance plans even for lesions outside the stomach to inform comprehensive upper-tract management.

Gastric Polyp Management and Clinical Implications publication trend

The graph below shows the total number of articles in gastric polyp management and clinical implications across all publications each year (not limited to Nature Index journals).

Technical terms

Hyperplastic polyp: A benign mucosal outgrowth characterised by elongated, tortuous foveolar glands often associated with chronic inflammation.

Fundic gland polyp: A lesion arising from dilated oxyntic glands, typically small and asymptomatic, sometimes linked to proton pump inhibitor use.

Neoplastic transformation: The process by which benign epithelial cells acquire dysplastic or malignant features.

Endoscopic submucosal dissection (ESD): An advanced technique enabling en bloc removal of larger or fibrotic mucosal lesions for precise histology.

Autoimmune metaplastic atrophic gastritis (AMAG): A chronic condition in which autoimmune destruction of parietal cells leads to atrophic and metaplastic changes predisposing to neoplasia.

Polypectomy: Endoscopic removal of a polyp, ranging from simple forceps excision to snare-based techniques.

References

1. Evaluation of non-gastric upper gastrointestinal system polyps: an epidemiological assessment. Scientific Reports (2023).
2. Malignant transformation of a gastric hyperplastic polyp in a context of Helicobacter pylori-negative autoimmune gastritis: a case report. BMC Gastroenterology (2016).
3. Risk factors and clinical correlates of neoplastic transformation in gastric hyperplastic polyps in Chinese patients. Scientific Reports (2020).
4. Gastric polyps: a 10-year analysis of 18,496 upper endoscopies. BMC Gastroenterology (2022).
5. Gastric Epithelial Polyps When to Ponder, When to Panic. Surgical Pathology Clinics (2020).