Intraarticular ganglion cyst around the cruciate ligament of the knee

Abstract Intraarticular ganglion cysts arising from the cruciate ligaments are encountered infrequently. We report two cases in which intraarticular ganglion cysts arising from the anterior cruciate ligament and the posterior cruciate ligament, respectively. In both cases, dull pain in the full flexion position was observed and magnetic resonance imaging was helpful for the preoperative diagnosis.