PMC3981353_01
In the preoperative computed tomography, a mass occupied the left maxillary sinus, showing irregular densities with destructions of the posterior bone wall (arrow).
cp-2012-1-e16-g001.jpg
PMC3981353_01_cp-2012-1-e16-g001.jpg
F1
In a pre-operative computed tomography (CT) scan, a mass occupied the left maxillary sinus showing irregular densities with destruction of the posterior bone wall and invasion into the left orbital (Figures 1 and 2).
In the preoperative computed tomography, a mass occupied the left maxillary sinus, invading the orbita (arrow).
cp-2012-1-e16-g002.jpg
PMC3981353_01_cp-2012-1-e16-g002.jpg
F2
In a pre-operative computed tomography (CT) scan, a mass occupied the left maxillary sinus showing irregular densities with destruction of the posterior bone wall and invasion into the left orbital (Figures 1 and 2).
T2 weighted magnetic resonance imaging showed low intensities with unevenness in the mass and destructions of the posterior bone wall (arrow).
cp-2012-1-e16-g003.jpg
PMC3981353_01_cp-2012-1-e16-g003.jpg
F3
TI and T2 weighted magnetic resonance imaging (MRI) showed low intensities and unevenness in the mass (Figure 3). Thus, CT and MRI suggested a solid mass in the maxillary.
Histopathological examination (H&E staining, x200) revealed nesting patterns with necrosis and the proliferation of cell round nuclei.
cp-2012-1-e16-g004.jpg
PMC3981353_01_cp-2012-1-e16-g004.jpg
F4
On the histological examination, the carcinoma tissues showed nesting patterns with necrosis, proliferation of cells with round nuclei and numerous abnormal mitotic features (Figure 4).