One of the mysteries of the English language finally explained.
The enlargement of an organ or tissue caused by an increase in the reproduction rate of its cells, often as an initial stage in the development of cancer.
- ‘Such factors might include the presence of benign prostatic hyperplasia or prostate cancer.’
- ‘Furthermore, increased goblet cell hyperplasia of the small airways was prominent in this model.’
- ‘No women were found to have endometrial carcinoma or adenomatous hyperplasia with atypia.’
- ‘Smooth enlargement suggests benign hyperplasia; roughness and irregularity suggest the possibility of cancer.’
- ‘Water-clear cell hyperplasia is a rare but well-documented cause of primary hyperparathyroidism.’
Mid 19th century: from hyper- ‘beyond’ + Greek plasis ‘formation’.
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