PMC6398039_01
Preoperative images. Left fronto-orbital fistula draining into the supra-medial orbit.
CRIOT2019-9437641.001.jpg
PMC6398039_01_CRIOT2019-9437641.001.jpg
fig1
At presentation, he suffered from recurrent sinonasal disease with left-sided headache and left fronto-orbital fistula discharge over his medial canthus (Figure 1).
CT orbit, sinuses, and skull base. Small A-P diameter of frontal sinus with extensive neo-osteogenesis secondary to chronic frontal sinusitis.
CRIOT2019-9437641.002.jpg
PMC6398039_01_CRIOT2019-9437641.002.jpg
fig2