Table 2

¹⁸FDG PET Results and histology on 18 patients with NF1 with symptomatic plexiform neurofibromas

No	Site of plexiform neurofibroma	Necrosis	Radiologist opinion	SUV	SUV time (min)^2-150	Histology
1	Prevertebral at L1	No	Malignant	4.5	195	Not diagnostic
2	Pelvis	Yes	Malignant	3.3	53	MPNST (low grade)
3	L brachial plexus	Yes	Malignant	2.7	60	Triton tumour
4	L thigh	Yes	Malignant	6.8	90	Triton tumour
	R lower limb	No	Malignant			MPNST (low grade)
5	L thigh	Yes	Malignant	8.4	163	Triton tumour
	L axilla	No	Malignant			MPNST (low grade)
6	R thigh	Yes	Malignant	5.7	175	Triton tumour
7	L thigh (medial)	No	?Malignant	1.8	60	Benign neurofibroma
	L thigh (post)	No	Benign	1.4	60	Benign neurofibroma
8	L supraclavicular fossa	No	Malignant	3.3	45	Benign neurofibroma
9	L buttock	No	Benign	1.46	77	No surgery
10	R lower limb	No	Benign	1.4	137	No surgery
11	R thigh	No	Benign	0.93	126	No surgery
12	L popliteal fossa	No	Benign	0.56	206	No surgery
13	R cervical region	No	Benign	2.4	121	Benign neurofibroma
14	Pelvis	No	Benign	1.46	77	No surgery
15	L popliteal fossa	No	Benign	1.27	79	Benign neurofibroma
16	Retroperitoneum,	No	Benign	1.67	184	No surgery
	R popliteal fossa	No	Benign	2.14	184	No surgery
	L popliteal fossa	No	Benign	0.56	184	No surgery
17	L upper limb	No	Benign	1.73	45	No surgery
18	R lower limb	No	Benign	0.97	193	No surgery