The concept of 'hyperplasia' should be left as a pure term representing morphological features. Repeated consensus meetings have certainly contributed to the standardization of pathological diagnosis. However, it is still open to question as to how to differentiate 'hyperplastic lesions' from low-grade intraepithe-
lial neoplasia, not only because of their morphological similarity, but also because of the continuous discussion of their neoplastic nature. Further investigations, adding to the studies above, will ultimately lead to some conclusion as to the true nature of 'hyperplasia-like lesions'.
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