RT Journal Article SR Electronic T1 Giant Intraosseous Synovial Cyst with Intraarticular Communication with the Ankle Joint in Longstanding Rheumatoid Arthritis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 180 OP 181 DO 10.3899/jrheum.111029 VO 39 IS 1 A1 YASSER EMAD AMIN A1 YASSER RAGAB A1 NASHWA EL-SHAARAWY A1 AHMED KAMAL YR 2012 UL http://www.jrheum.org/content/39/1/180.abstract AB