Pores of Kohn

AUTOR(ES)

Cordingley, J. L.

RESUMO

The history of the investigations into interalveolar communications (pores of Kohn) shows that the question whether they exist and, if so, their nature has for approximately a century been contentious. The present electron microscopic study of the lungs of mice demonstrates that alveolar pores are normal structures, with edges composed of intact alveolar wall. A number of planes are demonstrated from which a fully compatible reconstruction is made. It is concluded that pores are round or oval structures frequently having at least one type II alveolar cell forming part of their boundary.

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