ABSTRACT
UNLABELLED: UNKNO WLOGEMENT: Ganglion cysts have been reported in all joints, with varying frequency in location. A few cases have been described concerning ganglia of the anterior cruciate ligament (ACL) particularly intraligamentous cysts. AIM: The aim of the study is to report specific particularities of intraligamentous ganglion cyst of the ACL. CASE: We report a new case of intraligamentous ganglion cyst of the anterior cruciate ligament treated successfully with arthroscopic aspiration followed by partial excision of the cyst wall after MRI examination. The MR findings, clinical features and arthroscopic findings were evaluated comparatively. Diagnosis was confirmed by means of histological study after arthroscopic excision. The cyst was fluid-filled, with low T1-weighted signal intensity and high T2-weighted signal intensity. Pain was the most frequent clinical sign without any history of trauma. Postarthroscopy outcome was painless. Histologic diagnosis corresponded to ganglion cyst. CONCLUSION: An intraligamentous ganglion cyst of the ACL is extremely rare and suggests some diagnostic and therapeutic particularities.
