Fig. 3From: Ewing sarcoma with very late metastasis in the skull: a case reportCraniotomy was performed across the transverse sinus. A yellowish-white tumor (asterisk) was observed in the epidural space (a). Head MRI after intensity-modulated radiation therapy shows the residual tumor in the left mastoid air cells and sigmoid sinus; however, it is smaller than that before radiotherapy (b, c)Back to article page