Intra-Articular Synovial Sarcomas: Incidence and Differentiating Features from Localized Pigmented Villonodular Synovitis

Table 2

Univariate data analysis.

	PVNS	Sarcoma	value
	Mean (range)	Mean (range)
Size (cm)	2.5 (1.5–5)	4.6 (2–9)	0.059
Age (years)	41 (15–70)	21 (9–35)	0.012
	Number of patients/total#	Number of patients/total#
Gender (male)	5/14	6/7	0.063
Extra-articular growth	0/14	1/7	0.33
Blooming	1/5	1/2	1.0
Calcification	0/7	2/2	0.028
Effusion			0.016
Small	6/14	7/7
Moderate	5/14	0/7
Large	3/14	0/7
Low signal intensity in synovia	2/14	0/7	0.53
Synovitis	4/14	0/7	0.25

Total# refers to all patients with available information. Significant prior to Bonferroni correction.