Distinguishing Lymphomatous and Cancerous Lymph Nodes in 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography by Radiomics Analysis

Table 1

Patient characteristics.

	Number of patients (%)	Number of lymph nodes (%)
All patients	324	492
Sex
Men	201 (62.04)	317 (64.43)
Women	123 (37.96)	175 (35.57)
	Patients with lymphoma (%)	Patients with cancer (%)
Number of patients	262	62
Age (mean ± SD)	48.51 (19.09)	55.19 (12.81)
Stage^^
I	14 (5.34)	2 (3.23)
II	139 (53.05)	26 (41.94)
III	73 (27.86)	23 (37.1)
IV	36 (13.74)	11 (17.74)
Number of lymph nodes (%)
Histologic findings	Lymphoma	373	Cancer	119
	DLBCL	124 (33.24)	Gastric cancer	40 (33.61)
	HL	116 (31.1)	Esophageal cancer	20 (16.81)
	NKT	24 (6.43)	Nasopharyngeal carcinoma	20 (16.81)
	FL	22 (5.9)	Liver cancer	13 (10.92)
	MCL	13 (3.49)	Lung cancer	10 (8.4)
	T-LBL	7 (1.88)	Pancreatic cancer	6 (5.04)
	AITL	7 (1.88)	Gallbladder cancer	3 (2.52)
	PTCL NOS	6 (1.61)	Breast cancer	2 (1.68)
	MALT	6 (1.61)	Sarcoma	2 (1.68)
	ALK	4 (1.07)	Laryngeal cancer	2 (1.68)
	Burkitt	2 (0.54)	Thyroid cancer	1 (0.84)
	Nonspecific	43 (11.53)

Abbreviations: DLBCL, diffuse large B-cell lymphoma; HL, Hodgkin’s lymphoma; FL, follicular lymphoma; MCL, mantle cell lymphoma; T-LBL, T-lymphoblastic lymphoma; AITL, angioimmunoblastic T-cell lymphoma; PTCL NOS, peripheral T cell lymphoma, not otherwise specified; MALT, mucosa-associated lymphoid tissue lymphoma; ALK, ALK-positive anaplastic large cell lymphoma; Burkitt, Burkitt lymphoma. ^∧Part of patients has adopted clinical staging criteria because they have not undergone further diagnosis and treatment in our hospital. This part of the patients did not get the most detailed pathological classification from the pathological examination, even if immunohistochemical staining or gene sequencing was performed, which included the following (1) can only be judged as non-Hodgkin’s lymphoma and the specific type cannot be determined (35 cases); (2) can only be judged as small B-cell lymphoma and cannot be further classified (5 cases), difficult to judge as diffuse large B-cell lymphoma or mantle-cell lymphoma (2 cases); (3) can only be judged as B-cell lymphoma, but cannot be further distinguished (1 case).