Malignant meningeal melanoma.

We report the case of an isolated pigmented lesion of the cerebellar tentorium which was initially interpreted as meningeal melanocytoma. The immunohistochemical study required as a result of a subsequent post-surgical recurrence prompted us to reconsider the early diagnosis in favour of malignant meningeal melanoma. On the basis of data in the literature, the possibility that the lesion may have been a dural melanoma is discussed.