Duodenal Rare Neuroendocrine Tumor: Clinicopathological Characteristics of Patients with Gangliocytic Paraganglioma

Table 3

Comparison of clinicopathological data between patients with gangliocytic paraganglioma (GP) within and those with GP exceeding the submucosa or sphincter of Oddi layer.

	GP within the submucosa or sphincter of Oddi layer	GP exceeding the submucosa or sphincter of Oddi layer	Statistical analysis
Number of patients	81	72
Age (years), range	16–84 (median, 50.0)	15–73 (median, 57.0)	Significant difference was found; (Mann–Whitney U test, )
Tumor size (mm),; range	5.5–65 (median, 21.0)	8–100 (median, 20.0)	No significant difference was found; (Mann–Whitney U test, )
Sex; (male to female)	55 : 26	36 : 36	Significant difference was found; ( test, )
Rate of lymph node metastasis	7.4% (6/81)	20.8% (15/72)	Significant difference was found; ( test, )

Significant differences were found for age, sex, and the rate of lymph node metastasis between patients with GP within the submucosa or sphincter of Oddi layer and those with GP exceeding the submucosa or sphincter of Oddi layer.