Solid pseudopapillary tumor of the pancreas in male patients: Report of 16 cases

Table 4 Comparison between benign and malignant solid pseudopapillary tumors n (%)

Variables	Benign SPT	Malignant SPT	P value
	(n = 81)	(n = 35)
Gender (M/F)	12/69	4/31	NS
Age (yr)	36.4 ± 3.3	31.8 ± 5.9	NS
Tumor size			0.001
< 5 cm	38 (46.9)	5 (14.3)
≥ 5 cm	43 (53.1)	30 (86.7)
Mean tumor size	4.5 ± 1.9	7.6 ± 3.7	0.035
Location of SPT			NS
Head	28 (34.7)	10 (28.6)
Neck	19 (23.4)	4 (11.4)
Body and tail	4 (4.9)	4 (11.4)
Tail	26 (32.1)	16 (45.7)
The uncinate process	4 (4.9)	0
Multiple locations	0	1 (2.9)

Data are means with standard deviations in brackets or numbers with percentages in parentheses unless otherwise indicated; NS: Not significant; SPT: Solid pseudopapillary tumor; F: Female; M: Male.