PMC3420590_01
Axial MRI demonstrates avidly enhancing mass in the left paraclinoid region.
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fig1
Magnetic resonance imaging (MRI) showed a left-sided 1 centimeter by 1 centimeter enhancing lesion arising from the posterior orbital canal with extension into the paraclinoid region (Figure 1).
H&E photomicrograph reveals a markedly vascular tumor with lipidized stromal cells (x200).
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fig2
Stromal (tumor) cells were arranged in lobular patterns and displayed abundant foamy lipid with irregular, hyperchromatic nuclei (Figure 2).
Inhibin immunohistochemistry was positive in scattered tumor cells throughout the neoplasm (x400).
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fig3
Carpenteria, CA, USA) was focally positive in the stromal (tumor) cells but negative in the endothelial cells (Figure 3). CD10, RCC, and epithelial membrane antigen immunostains were negative in the specimen.