Fig. 2From: Unusual occurrence of orbital hemangiopericytoma in the zygomatic bone of an adolescent: a case reportPreoperative imaging. CT scan reveals an isodense intraosseous lesion in the zygomatic bone in axial (a) and coronal sections (b). In orbital MRI, the mass appears heterogenous in T2-weighted images (c) and shows remarkable contrast enhancement after gadolinium injection (d)Back to article page