Pathological differential diagnosis of solid-pseudopapillary neoplasm and endocrine tumors of the pancreas

Table 1 Clinical and pathological features of SPN and PET

Case No.	Sex/age (yr)	Tumor location	Size (cm)	Cystic or solid	H/N	PP areas
SPN group
1	F/17	Body	9.5	Cystic	Present	Present
2	F/19	Tail	6.0	Cystic	Present	Present
3	F/14	Head	8.0	Cystic	Present	Present
4	M/20	Body & tail	10.0	Cystic & solid	Present	Present
5	F/24	Head	10.0	Cystic	Present	Present
6	F/33	Body & tail	5.0	Solid	Absent	Present
7	F/21	Body & tail	20.0	Cystic & solid	Present	Present
8	M/43	Body	10.5	Cystic & solid	Present	Present
9	F/27	Tail	12.0	Cystic& solid	Present	Present
10	F/38	Unclear	19.5	Cystic & solid	Present	Present
PET group
11	F/16	Head	1.5	Solid	Absent	Absent
12	F/53	Body	2.0	Solid	Absent	Absent
13	M/44	Tail	1.5	Solid	Absent	Absent
14	F/40	Head	4.5	Solid	Absent	Absent
15	M/43	Head	3.0	Solid	Absent	Absent
16	F/49	Head	1.5	Solid	Absent	Absent
17	F/34	Head	2.0	Solid	Absent	Absent
18	F/46	Head	1.5	Solid	Absent	Absent
19	F/49	Tail	5.5	Solid	Absent	Absent
20	M/52	Head	3.0	Cystic & solid	Present	Absent
21	F/50	Tail	1.5	Solid	Absent	Absent
22	M/37	Tail	4.2	Cystic & solid	Present	Absent
23	F/45	Body	3.4	Solid	Absent	Absent
24	M/46	Tail	5.7	Cystic & solid	Present	Absent

H/N: Hemorrhage/necrosis; PP: Pseudopapillary; SPN: Solid-pseudopapillary neoplasm; PET: Pancreatic endocrine tumor.