The parathyroid oxyphil cells

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RESUMO

A semi-quantitative study of the parathyroid oxyphil cells in over 500 cases is presented. They are divided into two age groups: under 45 years of age and over that age period. In the former group the oxyphil cells are few in number except in advanced renal disease when there is a gross increase; in one case the increase was at least 1,200-fold. Over 45 years of age there is an average increase but a considerable number of cases, including some in the ninth decade, show no significant increase. From approximately the middle of the fifth decade onwards the average increase is greater in females than males, roughly twice or even more for all decades.

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