Clinicopathological study of solid and pseudopapillary tumor of pancreas: Emphasis on magnetic resonance imaging findings

Table 1 Clinicopathological features of 26 SPT patients underwent surgical treatment

	n	(%)
Gender
Male	1	3.8
Female	25	96.2
Symptom
No symptom	5	19.2
Abdominal pain	10	38.5
Abdominal palpable mass	5	19.2
Jaundice	2	7.7
Epigastralgia	4	15.4
Tumor marker
CEA < 5 (μg/L)	26	100
CA 19-9 < 37 (kU/L)	26	100
Tumor location
Head	11	42.3
Body	3	11.6
Tail	6	23.1
neck and body	1	3.8
body and tail	5	19.2
Resectability
Resectable	24	92.3
Unresectable	2	7.7
Operation method
Whipple’s operation	8	30.8
Partial pancreatectomy	3	11.6
Distal pancreatectomy	7	26.9
Enucleation of the pancreatic tumor	6	23.1
Bypass surgery	1	3.8
Biopsy only	1	3.8
Tumor behavior
Solid-pseudopapillary neoplasm	17	56.4
Solid-pseudopapillary carcinoma	9	34.6

Table 2 Clinicopathological features of 9 solid pseudopapillary carcinoma patients

No.	Age(yr)/Sex	Tumor location	Extension	Vascular invasion	Operation method	Metastasis	Metastasis(mo)	Status	Follow-up(mo)
1	36/F	Head	Duodenal wall	-	Whipple’s operation	-	-	Alive	70
21	34/F	Tail	-	-	Distal pancreatectomy	-	-	Alive	12
3	39/F	Head	-	-	Whipple’s operation	Liver	39	Alive	58
4	22/F	Neck,	-	PV	Partial pancreatectomy,	-	-	Alive	202
		body
5	18/F	Head	Duodenal wall	-	Whipple’s operation	-	-	Alive	145
6	16/F	Head	Duodenal wall	-	Whipple’s operation	-	-	Alive	56
7	20/F	Body,	Extrapancreatic	-	Biopsy only	Liver, omentum	0	Alive	75
		tail				Peritoneum
						Pelvic wall
8	28/F	Head	-	PV	Whipple’s operation	-	-	DOC	66
9	19/F	Head	-	PV, SMA	Roux-en-Y cystojejunostomy	-	-	DOC	83

¹means perineural invasion and angioinvasion; PV: Portal vein; SMA: Superior mesenteric artery; DOC: Die of other cause.

Table 3 MRI features of 11 SPT patients

No.	Type of image	Presentation	Age	G	Size(cm)	Location	T1WI	Enhancement	T2WI	H
1	I	RUQ mass, incidentally noted	28	F	3.5	Tail	Hypointense homogenously	Gradual enhancement of solid component	Hypointense homogenously	(-)
2	I	GI upset, incidentally noted	22	F	7.5	Body and tail	Hypointense homogenously	Gradual enhancement of solid component	Hypointense homogenously	(-)
3	I	RUQ mass, incidentally noted	22	F	6	Head	Hypointense homogenously	Gradual enhancement of solid component	Mild hyperintense	(-)
4	II	Abdominal pain	14	F	5	Body	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)
5	II	Abdominal pain	29	F	5	Head	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)
6	II	Abdominal pain	33	F	11	Tail	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)
7	II	Abdominal pain	29	F	7	Head	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)
8	II	Abdominal pain	23	F	7.6	Head	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)
9	III	Abdominal pain	27	F	6	Tail	Hypo and hyperintense homogenously	Capsular enhancement, Gradual enhancement of solid compnent	Hyperintense (hyperintense areas on T1WI )	(+)
10	III	Abdominal pain	36	F	7	Head	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)
11	III	Abdominal pain	16	F	5	Head	Hyperintense heterogeneously	Heterogenous	Hyperintense (hyperintense areas on T1WI )	(+)

I: Completely solid; II: Typical; III : Massive hemorrhage; GI: Gastrointestinal; H: Hemorrhage.