PMC3303510_01
Swelling of the right maxilla causing gross asymmetry of face
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F1
Extra orally, a solitary diffuse swelling was noticed unilaterally on the right middle one-third of the face causing gross asymmetry of the face [Figure 1].
Panoromic radiograph showing unilateral osteolytic lesion destroying tuberosity and posteroinferior wall of maxillary sinus on the right side
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F2
The borders of the lesion were ill-defined and appeared invasive [Figure 2].
CT scan (coronal section) revealing contrast enhanced lesion in right maxilla involving, superior, medial, lateral, and inferior borders of maxilla
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F3
However other sinuses, pterygoid plates and pterygoid muscles appeared normal [Figure 3].
Incisional biopsy through intraoral approach
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F4
Incisional biopsy was performed intraorally [Figure 4].
Showing predominantly epidermoid cell component (H and E staining, higher magnification, x40 view)
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F5
Upon examination in higher magnification, a mixture of morphologically altered epidermoid cells, intermediate basaloid-like cells and mucous cells are observed of which epidermoid component is predominant [Figure 5].
Demonstrating extensive degree of cellular atypia (H and E staining, x40 view)
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F6
Adjacent skeletal muscle and tiny bony spicule was infiltrated by tumor cells [Figure 6].