Melanomas do not stain for EMA and this is used to differentiate from meningiomas [22] Occasionally, in cases of neurilemmoma and pigmented malignant schwannoma, more rarely in ependymoma, gliosarcoma, and cerebral primitive neuroectodermal tumors there could be some focal positivity of HMB 45. Here, MUC1 is linked to meningioma.