Case Control Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Jun 14, 2014; 20(22): 6939-6945
Published online Jun 14, 2014. doi: 10.3748/wjg.v20.i22.6939
Table 1 Demographic characteristics of patients n (%)
VariableGroup 1Group 2P value
Cases10016-
Age (yr)33.1 ± 11.543.1 ± 12.30.043
Tumor size (cm)6.5 ± 3.55.8 ± 2.0NS
SymptomsNS
Abdominal pain41 (41)6 (37.5)
Abdominal discomfort17 (17)2 (12.5)
Palpable abdominal mass17 (17)0
No symptoms24 (24)8 (50.0)
Jaundice1 (1)0
Location of tumorsNS
Head31 (31)7 (43.7)
Neck21 (21)2 (12.5)
Body and Tail6 (6)2 (12.5)
Tail37 (37)5 (31.3)
The uncinate process4 (4)0
Head and tail1 (1)0
Table 2 Surgical details n (%)
VariablesGroup 1Group 2P value
(n = 100)(n = 16)
Surgical strategiesNS
Pancreaticoduodenectomy29 (29)5 (31.3)
Middle pancreatectomy13 (13)2 (12.5)
Distal pancreatectomy17 (17)2 (12.5)
Distal pancreatectomy with splenectomy23 (23)5 (31.3)
Enucleation16 (16)2 (12.5)
Enucleation + distal pancreatectomy1 (1)0
Cholangiojejunostomy without tumor resection1 (1)0
Organ-preserving operation46 (46)6 (37.5)NS
Vessel involvement and metastases
Vessel involvement29 (29)3 (18.8)
Pancreatic tissue infiltration6 (6)2 (12.5)
Adjacent organs compromised2 (2)1 (6.3)
Liver metastases5 (5)0
Total31 (31)4 (25)NS
Table 3 Post-operative complications n (%)
VariablesGroup 1Group 2P value
(n = 100)(n = 16)
Complications
Pancreatic fistula11(11)2 (12.5)
Incision infection2 (2)0
Fluid collection in abdomen3 (3)0
Pulmonary infection3 (3)0
Alimentary tract hemorrhage1 (1)0
Total20 (20)2 (12.5)NS
Table 4 Comparison between benign and malignant solid pseudopapillary tumors n (%)
VariablesBenign SPTMalignant SPTP value
(n = 81)(n = 35)
Gender (M/F)12/694/31NS
Age (yr)36.4 ± 3.331.8 ± 5.9NS
Tumor size0.001
< 5 cm38 (46.9)5 (14.3)
≥ 5 cm43 (53.1)30 (86.7)
Mean tumor size4.5 ± 1.97.6 ± 3.70.035
Location of SPTNS
Head28 (34.7)10 (28.6)
Neck19 (23.4)4 (11.4)
Body and tail4 (4.9)4 (11.4)
Tail26 (32.1)16 (45.7)
The uncinate process4 (4.9)0
Multiple locations01 (2.9)