Type 3 gastric neuroendocrine neoplasms: the rising promise of conservative endoscopic management

• DOI: 10.3389/fmed.2024.1327864
• Publication Date: 2024-01-31T04:31:50Z
• Authors: Elisabetta Dell’Unto; Gianluca Esposito; Maria Rinzivillo; Matteo Marasco; Bruno Annibale; Francesco Panzuto
• Keywords: Medicine (General); 03 medical and health sciences; endoscopic resection; R5-920; 0302 clinical medicine; endoscopic resection; gastric carcinoids; guidelines; management; neuroendocrine tumors; Medicine; guidelines; neuroendocrine tumors; management; gastric carcinoids

Gastric neuroendocrine neoplasms (g-NENs) are rare tumors arising from the gastric enterochromaffin-like cells. Recent data suggests an increased detection rate, attributed to more frequent esophagogastroduodenoscopies. While type 3 g-NENs were historically deemed aggressive, emerging research indicates potential for conservative management, especially endoscopic resection, in well-differentiated, small tumors. European guidelines now advocate for endoscopic intervention in selected cases, but North American guidelines remain more conservative. Key factors influencing outcomes are tumor size, grading, and depth of gastric wall infiltration. Endoscopic resection has shown promise for tumors confined to submucosal layers without lymphovascular invasion. Given the complexities, a multidisciplinary team approach is essential for management decisions. Current insights are largely based on retrospective studies, underscoring the need for prospective research to optimize endoscopic approaches.