Massive Neurilemoma of the Hard Plate in Which Preoperative Diagnosis Was Difficult

Figure 8

Histopathological image (rebiopsy: a, b: H-E ×100, Ki-67 ×200). Tumor cells containing atypical glands and a spindle nucleus, with fibrous tissues in the submucosa proliferating in a fascicular pattern. Mitosis and proliferation of atypical cells were present, and immunostaining showed a Ki-67 positive rate exceeding 5%. Histopathological image (rebiopsy: c, d: S-100 ×200, p63 ×200). The tumor cells were S-100 positive and strongly p63 positive.

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