Somatostatin analogs for gastric carcinoids: For many, but not all

Table 1 Characteristics of gastric carcinoids according to the European Neuroendocrine Tumor Society guidelines[8]

	GC1	GC2	GC3
Proportion among g-NEN	70%-80%	5%-6%	14%-25%
Grading	NET G1	NET G1-G2	NEC G3
Associated conditions	CAG	Gastrinoma/MEN-1	None
Serum gastrin values	Elevated	Elevated	Normal
Metastases	2%-5%	10%-30%	50%-100%
Mortality rate	0%	< 10%	25%-30%

GC 1, 2 and 3: Type I, II and III gastric carcinoids; NENs: Neuroendocrine neoplasms; CAG: Chronic atrophic gastritis; MEN-1: Multiple endocrine neoplasia type I.