Table 1.

Patient characteristics of study population

	MPNSTs	BPNSTs
Total lesions (%)	10 (14.3)	60 (85.7)
Gender
Female	7 (70.0)	33 (55.0)
Male	3 (30.0)	27 (45.0)
Age
≤ 18 years	2 (20.0)	13 (21.7)
> 18 years	8 (80.0)	47 (78.3)
Mean age	43 (± 18.5)	37 (± 15.4)
Diagnosis
Resection	9 (90)	18 (30.0)
Biopsy	1 (10)	10 (16.7)
Follow-up > 12 months	–	32 (53.3)
Mean follow-up	1.5 (± 0.7)	3.5 (± 1.6)

Table displaying patient characteristics of included population. Mean age in years ± SD. Diagnosis, n (%) refers to number of lesions diagnosed based on biopsy or resection. Follow up > 12 months refers to lesions diagnosed as benign based on being clinically silent after a minimum of 12 months of clinical and radiological follow-up. Mean length of follow-up in years ± SD. BPNST benign peripheral nerve sheath tumor; MPNST malignant peripheral nerve sheath tumor