Abstract
Giant cells occur in the lung in inflammatory and reactive processes of various etiology. Whether the giant cells derive from the alveolar epithelial lining cells or whether they are of mesenchymal genesis cannot yet be answered with certainty. On the basis of literature and our own observations, we consider whether it would not be more appropriate for the time being to distinguish two kinds of giant-cell pneumonias: those of the viral type, characterized by multinucleate giant cells, and those of the foreign-body type, in which endogenous or exogenous substances are demonstrable in the giant cells. Both kinds of pneumonias are illustrated by cases from domestic or fur-bearing animals.
Dr. M.F. El Etreby ist Stipendiat der Studienmission der Vereinigten Arabischen Republik in der Bundesrepublik Deutschland.
