Table 1.

Diagnosis and presurgical evaluation of the patients

Case	Age	Gender	Form	Follow-up (months)	Clinical findings	Delay in diagnosis (months)	Previous diagnosis
1	12	F	D	90	Gonalgia	24	RA
2	14	F	LI retropatellar region (Hoffa’s fat)	78	Gonalgia	24	RA
3	15	F	D	108	Gonalgia	8	No
4	10	M	LI posterior to the cruciate ligaments	58	Swelling	2	No
5	10	F	D	50	Gonalgia	3	No
6	2	F	D	106	Claudication, swelling	38	RA
7	11	M	D	46	Swelling	4	No
8	7	M	LI retropatellar region (Hoffa’s fat)	143	Pain, swelling	48	RA
9	10	M	LI posterior to the cruciate ligaments	60	Pain, swelling, functional impairment	10	No

D diffuse, LI localized intra-articular, RA rheumatoid arthritis