Primary Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses

<table>Coronal T2-weighted brain MRI showing a sinonasal mass involving the ethmoid/sphenoid sinuses (white arrows) with extension into the right orbit (white arrow head) and anterior cranial fossa (black arrow).</table>

Case Reports in Medicine

fig3

Figure 3

Figure 3: Primary Small Cell Neuroendocrine Carcinoma of Paranasal Sinuses 