Two unusual cases of purpura simplex raise the problem, as yet unsolved, of the pathogenesis of the purpuric eruption. Together with a previous observation of hemorrhagic purpura made by Roskam, they show the inconstancy and variability of the vascular fragility test.

ACKNOWLEDGMENT This paper was translated by Raymond G. Gottschalk, M.D., whose cooperation is gratefully acknowledged.

© 1948 by American Society of Hematology, Inc.
1948
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