Compensatory Growth of the Kidney

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Abstract
COMPARED with the intense restorative activity in liver after a major resection,1 compensation seems indolent in the kidney deprived of its counterpart. Kidney weight increases within a day or two, but nearly a week passes before the enlargement is visible, and several more weeks are necessary before renal mass approaches the normal complement. Microscopical examination is scarcely more rewarding; it rarely shows more than a few mitotic figures and some cellular enlargement. Although resection of more than half the renal mass produces more intense growth and mitotic activity, the problems of local tissue injury, lymph flow and uremia so complicate . . .