PMC3687164_01
Clinical picture showing an exophytic growth
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F1
It also extended superiorly such that the left eye globe could not be visualized [Figure 1].
H and E, (x100/400) showing malignant epithelial cells with some areas of clear differentiation
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F2
There were areas showing clear cell differentiation of the malignant squamous cells with some cells arranged in a pseudo-glandular pattern and isolated areas showing keratin pearl formation [Figure 2].
Sections (x400) of mucicarmine, periodic acid schiff and alcian blue are negative while AE1/AE3 is strongly positive
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PMC3687164_01_JOMFP-17-110-g003.jpg
F3
Figure 3 shows lesion to be negative for periodic acid schiff (PAS), mucicarmine and alcian blue stains but was strongly positive for AE1/AE3 (immunostain).