18F-FDG PET/CT metabolic parameters are correlated with clinical features and valuable in clinical stratification management in patients of castleman disease

Table 3 Comparison of metabolic parameters between histologic subtypes

Variable	HV (n = 36)	PC (n = 48)	Mixed (n = 9)	p
SUV_max	4.1 (2.6)	5.3 (4.4)	5.0 (4.1)	0.120
MLV	12 (21)	46(46)	24 (34)	0.002
TLG	31(67)	124 (144)	69(123)	0.002
LLR	1.69 (0.88)	2.13 (1.44)	1.92 (1.10)	0.024
LMR	2.49 (1.61)	3.26 (2.35)	2.65 (2.54)	0.059
SLR	0.90 ± 0.17	1.19 ± 0.29	1.07 ± 0.36	< 0.001

HV hyaline vascular type, PC plasma cell type, Mixed mixed cell type, SUV_max maximum standardized uptake value, MLV metabolic lesion volume, TLG total lesion glycolysis, LLR lymph node to liver ratio of SUV_max, LMR lymph node to mediastinum ratio of SUV_max, SLR spleen to liver ratio of SUV_max, p < 0.05: signifcant.

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