“…[2][3][4][5][6][31][32][33][34][35][36][37][38][39][40][41] In 8 of these cases, the maxillary bone was compromised. 31,[33][34][35][36][37]39,40 Orbital invasion through lesions arising in the ethmoid or sphenoid sinuses 6,36,37,41,42 or frontal bone 2,4,5,32 have also been reported. These data indicate that the clinical findings of patient 13 are quite unusual because the orbit was invaded from the deep portion of the lateral wall, a location that has never been implicated as a source of brown tumors.…”