Comprehensive clinicopathologic characteristics of intraabdominal neurogenic tumors: Single institution experience

Table 1 Histopathologic and clinical characteristics of study population

Case	Age	Sex	Diagnosis	Localization	S100	CD117 (c-kit)	Desmin	CD34	Ki-67	SMA	EMA	NFP
1	41	Female	Schwannoma	Duodenum and retroperitone	Positive	Negative	Negative	Negative	< 1%	Negative	Negative	Negative
2	64	Female	Schwannoma	Stomach	Positive	Negative	Negative	Negative	2%	Focal positive	Negative	Negative
3	36	Female	Schwannoma	Stomach	Positive	Negative	Negative	Negative	1%	Negative	Negative	Negative
4	47	Female	Schwannoma	Stomach	Diffuse positive	Negative	Focal positive	Negative	1%	Focal positive	Negative	Negative
5	44	Male	Ganglioneuroma/Ganglioneuromatosis	Transvers colon	Positive	Negative	Negative	Negative	< 1%	Negative	Negative	Positive
6	51	Female	Schwannoma	Stomach	Diffuse positive	Negative	Negative	Negative	1%	Negative	Negative	Negative
7	50	Female	Cellular schwannoma	Rectum posterior	Diffuse positive	Negative	Focal positive	Focal positive	2%	Focal positive	Focal positive	Negative
8	51	Male	Cellular schwannoma	Retroperitoneum (descending colon-sigmoid colon junction, rectosigmoid posterior)	Diffuse positive	Negative	Negative	Negative	< 1%	Focal positive	Focal positive	Negative
9	30	Female	Schwannoma	Retroperitoneum (duodenum posterior)	Diffuse positive	Negative	Negative	Negative	< 1%	Negative	Negative	Negative
10	71	Male	Schwannoma	Stomach	Diffuse positive	Negative	Negative	Negative	< 1%	Negative	Negative	Negative
11	82	Male	Malignant peripheral nerve sheath tumor	Around colon	Focal positive	Negative	Negative	Negative	5%	Negative	Negative	Negative
12	72	Male	Schwannoma	Stomach	Positive	Negative	Negative	Negative	< 1%	Negative	Negative	Negative
13	52	Female	Schwannoma	Stomach	Diffuse positive	Negative	Negative	Focal positive	2%	Focal positive	Focal positive	Negative
14	57	Female	Schwannoma	Stomach	Diffuse positive	Negative	Negative	Negative	2%	Negative	Negative	Negative
15	18	Male	Neurofibromatosis	Duodenum -> transverse colon	Diffuse positive	Negative	Negative	Focal positive	< 1%	Negative	Negative	Negative
16	36	Male	Ganglioneuroma	Sigmoid colon	Positive	Negative	Focal positive	Negative	< 1%	Focal positive	Negative	Negative
17	35	Female	Neurofibromatosis	Sigmoid colon	Positive	Negative	Negative	Negative	< 1%	Negative	Negative	Negative
18	79	Female	Mucosal Schwann cell hamartoma	Sigmoid colon	Positive	Negative	Negative	Negative	< 1%	Negative	Negative	Negative
19	86	Female	Malignant peripheral nerve sheath tumor	Stomach	Focal positive	Negative	Negative	Negative	30%	Focal positive	Negative	Negative

EMA: Epithelial membrane antigen; NFP: Neurofilament protein; SMA: Smooth muscle actin.