Unsual ganglion cyst in intercondylar notch in childern

There is evidence of fluid signal in the region of the intercondylar notch with anterior and posterior cruciate ligaments normally visualized. This finding particularly with no history of trauma and intact cruciate ligaments indicates ganglion cyst of the intercondylar notch. The incidence of ganglion cysts of the anterior cruciate ligament (ACL) has increased significantly since the advent of MRI, but it remains exceptional in children. This is a case of 9-year-old boy, with an exceptional imaging exam finding of a ganglion cyst.  Ganglion cyst of the ACL in children differs in pathogenesis from common degenerative cyst in adults.