Table II.

Clinical features of 21 patients with ENKTCL.

Patient no.	Age (years)	Gender	Primary cancer site	Stagea	LDH levels	B symptoms	IPI	TIAM1 in ENKTCL (IHS)b
1	27	Male	Nasal cavity	I	Normal	A	0	0
2	52	Female	Nasal cavity	II	Normal	B	0	0
3	71	Male	Nasal cavity	I	Normal	A	1	0
4	68	Male	Gingiva	IV	Normal	A	4	0
5	24	Male	Adrenal gland	III	Normal	A	2	2
6	54	Male	Nasal cavity	IV	High	B	4	0
7	55	Male	Nasal cavity	I	Normal	A	0	2
8	45	Female	Bone marrow	IV	Normal	B	3	2
9	39	Male	Nasal cavity	IV	High	B	3	1
10	41	Male	Nasal cavity	I	High	A	1	2
11	26	Male	Gastric	IV	High	A	4	0
12	64	Male	Nasal cavity	I	High	A	3	1
13	13	Female	Bone marrow	IV	High	B	4	2
14	55	Male	Bone marrow	IV	High	B	4	1
15	43	Male	Bone marrow	IV	High	B	4	0
16	43	Female	Nasal cavity	II	High	B	2	0
17	71	Male	Nasal cavity	I	Normal	A	2	0
18	40	Male	Nasal cavity	IV	Normal	B	3	1
19	39	Male	Nasal cavity	III	Normal	B	3	2
20	24	Male	Nasal cavity	IV	High	B	3	2
21	32	Male	Nasal cavity	II	Normal	B	1	0

^aAnn Arbor staging;

^bprotein expression levels of TIAM1 in ENKTCL tissues. ENKTCL, extranodal natural killer/T-cell lymphoma, nasal type; LDH, lactate dehydrogenase; IPI, international prognostic index; TIAM1, T-lymphoma invasion and metastasis inducing factor 1; IHS, immunohistochemistry score.