Gastric Neuroendocrine Tumor (NET) Types Type 1 - Chronic atrophic gastritis and pernicious anaemia Type 2 - Zollinger Ellison syndrome and Multiple Endocrine Neoplasia (MEN)-1 Type 3 - None (Sporadic) #Gastric #Neuroendocrine #Tumor #NET #Types #Classification #oncology #comparison #table