Thyroid incidentalomas on 18FDG-PET/CT: a metabolico-pathological correlation

Table 1 Clinical characteristics of surgical patients with thyroid incidentalomas (n = 46)

Characteristics	Malignant	Benign	p
Characteristics	(n = 25)	(n = 21)	p
Age (years)	61.88 ± 12.07	61.86 ± 10.27	0.996
Sex (M/F)	14/11	4/18	0.008
SUVmax	4.90 [2.95–8.65]	4.40 [3.55–7.73]	0.499
Size^a (cm)	1.50 [1.10–2.25]	1.45 [1.13–1.68]	0.873
Ultrasound^b			0.264
Low risk n (%)	5 (38.5)	8 (61.5)
Suspect n (%)	13 (54.2)	11 (45.8)
Malignant n (%)	3 (100.0)	0 (0.0)
Cytoponction^c			0.009
Low risk n (%)	3 (30.0)	7 (70.0)
Intermediate n (%)	6 (46.2)	7 (53.8)
High risk n (%)	14 (82.4)	3 (17.6)
Non diagnostic n (%)	2 (33.3)	4 (66.6)

^aFrom the PET/CT
^bBased on radiology report of suspicious features for malignancy according to ATA guidelines 2015 (Low risk = no suspicion or hypoechogenic nodule with no other features, suspect = 2 or 3 suspicious features, malignant = 4 suspicious features)
^cAccording to the Bethesda system for reporting thyroid cytopathology
Data are shown as Mean ± standard deviation, Median [IQR] unless otherwise indicated

ISSN: 1916-0216