Surgical Management of Bilateral Venous Malformation (Cavernous Hemangiomas) of the Maxillary Sinus

Figure 1

Noncontrast computed tomography and computed tomography angiography images. Preoperative (a) coronal and (b) axial noncontrast computed tomography shows a soft tissue mass filled the bilateral nasal cavities and maxillary sinuses without bony destruction. Computed tomography angiography shows that (c) the main feeder of right-side tumor was greater palatine artery and (d) the other side was infraorbital artery.

(a)

(b)

(c)

(d)