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A suggested explanation for the paradoxically slow growth rate of basal‐cell carcinomas that contain numerous mitotic figures

A suggested explanation for the paradoxically slow growth rate of basal‐cell carcinomas that... Departments of Pathology, University of Queensland Medical School and Royal Brisbane Hospital, Herston, Brisbane, Australia PLATES XXII AND XXIII THEhigh incidence of mitotic figures in slowly growing basal-cell carcinomas of skin has long been an enigma (Willis, 1953), and recent detailed studies of cell proliferation in these tumours have confirmed that there is indeed a gross discrepancy between their expected and observed rate of enlargement (Frindel, Malaise and Tubiana, 1968; Weinstein and Frost, 1970). It has been suggested that extensive and continuous loss of neoplastic cells is the most likely explanation for this discrepancy, but the actual mechanism of the loss has remained obscure. Progressive loss of hepatocytes due to a distinct type of cellular death termed shrinkage necrosis (Kerr, 1965, 1971) has been shown to be largely responsible for the rapid atrophy of rat liver tissue that follows obstruction of its portal blood supply (Kerr, 1971, 1972). This process characteristically affects scattered individual cells, which initially condense and separate from their neighbours. Numerous buds then develop on their surfaces and subsequently separate to produce small rounded masses of compacted but well-preserved cytoplasm, which may or may not contain pyknotic nuclear remnants. Such structures, customarily referred to as http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Pathology Wiley

A suggested explanation for the paradoxically slow growth rate of basal‐cell carcinomas that contain numerous mitotic figures

The Journal of Pathology , Volume 107 (1) – May 1, 1972

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References (25)

Publisher
Wiley
Copyright
Copyright © 1972 The Pathological Society of Great Britain and Ireland
ISSN
0022-3417
eISSN
1096-9896
DOI
10.1002/path.1711070107
pmid
5069401
Publisher site
See Article on Publisher Site

Abstract

Departments of Pathology, University of Queensland Medical School and Royal Brisbane Hospital, Herston, Brisbane, Australia PLATES XXII AND XXIII THEhigh incidence of mitotic figures in slowly growing basal-cell carcinomas of skin has long been an enigma (Willis, 1953), and recent detailed studies of cell proliferation in these tumours have confirmed that there is indeed a gross discrepancy between their expected and observed rate of enlargement (Frindel, Malaise and Tubiana, 1968; Weinstein and Frost, 1970). It has been suggested that extensive and continuous loss of neoplastic cells is the most likely explanation for this discrepancy, but the actual mechanism of the loss has remained obscure. Progressive loss of hepatocytes due to a distinct type of cellular death termed shrinkage necrosis (Kerr, 1965, 1971) has been shown to be largely responsible for the rapid atrophy of rat liver tissue that follows obstruction of its portal blood supply (Kerr, 1971, 1972). This process characteristically affects scattered individual cells, which initially condense and separate from their neighbours. Numerous buds then develop on their surfaces and subsequently separate to produce small rounded masses of compacted but well-preserved cytoplasm, which may or may not contain pyknotic nuclear remnants. Such structures, customarily referred to as

Journal

The Journal of PathologyWiley

Published: May 1, 1972

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