Case of primary extracranial meningioma of the maxillary sinus presenting as buccal swelling associated with headache: A case report

Figure 3 Immunohistochemical findings of the lesion. A: The tumor cells were strongly positive for vimentin; B: The tumor cells were focally positive for epithelial membrane antigen; C: The tumor cells were focally positive for CD99; D: The tumor cells were negative for STAT6; E: The tumor cells were negative for CD34; F: The tumor cells were focally positive for Ki-67.