MEDIAL MENISCAL CYST IMITATING A TUMOR, WITH COMPRESSION OF THE SAPHENOUS NERVE

We report a case of large medial meniscal cyst responsible for symptom atic saphenous nerve compression in a 49-year-old male with a history of mild trauma to the affected knee. We are not aware of any similar c ases in the literature, The lesion was delineated by ultrasonography a nd even more clearly by magnetic resonance imaging. At surgery, the sa phenous nerve was seen to be displaced by the cyst, Cystectomy and par tial meniscectomy were performed, The outcome was favorable.