Significance of incidental focal fluorine-18 fluorodeoxyglucose uptake in colon/rectum, thyroid, and prostate: With a brief literature review

Table 2 AUCs and cutoffs for malignant colorectal¹, thyroid, and prostate lesions

Lesion	SUV	AUC	95% confidence interval	P value	Cutoff	Sensitivity	Specificity
Colorectal	SUVmax	0.752	0.649-0.856	P < 0.001	7.6	0.673	0.676
	SUVpeak	0.729	0.62-0.836	P < 0.001	6.2	0.673	0.706
Thyroid	SUVmax	0.676	0.521-0.832	P = 0.025	6.9	0.63	0.632
Prostate	SUVmax	0.706	0.544–0.868	P = 0.026	3.8	0.591	0.588

¹Focal colorectal uptake includes both malignant and premalignant lesions.

AUC: Area under the curve; SUV: Standardized uptake value.