A Rare Case of Radiation-Induced Osteosarcoma of the Ethmoid Sinus
Figure 1
(a) Initial facial axial CT scan showing a mixed iso- and hyperdense mass (black star) of the right lateral nasal wall extending to the left orbit, (b) facial axial CT scan one month later showing progression of the tumor to involve the right maxillary sinus, the nasal fossa.
