Table 1.

Clinical information patients with soft tissue mass in upper leg

	Nerve invasion (n = 18)	Noninvasion (n = 26)	Total (n = 44)
Age and gender
Age, range (year)	19–71	17–69	17–71
Mean age (year)	44.6 ± 17.4	42.5 ± 15.8	43.4 ± 16.3
Male:female	10:8	14:12	24:20
Symptoms, n
Limb pain	16	5	21
Limb numbness	13	2	15
Muscle weakness	8	2	10
Pathology results, n
Soft tissue sarcoma	15	2	17
Vascular anomalies	0	9	9
Lipoma	0	5	5
Schwannoma	2	0	2
Neurofibroma	3	0	3
Leiomyoma	0	2	2
Angioleiomyoma	0	1	1
Tenosynovial giant cell tumor	0	1	1
Metastasis	1	1	2
Fibroma	0	2	2

Nerve invasion was confirmed by operation.