Giant Cell Tumor of the Tendon Sheath (GCTTS) is the most common benign neoplasm after the ganglion cyst. It is a soft tissue mass that progresses slowly and commonly occurs on the tendon sheath and at the joints of the digits. To date, most case reports have reported GCTTS in the hands. However, GCTTS originating in the hip joint has not been reported to date. Case report: We present a rare ca...

Background: Giant cell tumor is a benign but locally aggressive bone neoplasm which uncommonly involves the skull. Giant cell tumor (GCT) of the sphenoid bone is relatively rare. In this report, we describe a tumor of the greater wing of left sphenoid bone. Case presentation: A 31-year-old female was presented with headache, proptosis and diplopia of her left eye. Cranial magnetic resonance ima...