To the Editor: I read the article "Ichthyosiform Erythroderma and Ichthyosis Vulgaris" by Maurice T. Fliegelman in the August, 1962, issue with great interest. It was a pleasure to see that he takes the view that these are 2 distinct clinical entities even if they occur in the same family. In the U.S. literature, particularly in proceedings of society meetings, these 2 basically different conditions have often been thrown together and the differences considered to be insignificant. How uncertain one has become about the differences is best illustrated by the fact that even Fliegelman speaks just of a "feeling" that the 2 conditions are different.
In contrast, European authors have, without exception, sharply distinguished these 2 conditions ever since the original description of erythrodermie congénitale ichthyosiforme avec hyperépidermotrophie by Brocq in 1902.
I have been engaged in emphasizing the distinguishing features because of the basic differences in the types of
Rothman S. DIFFERENCES IN TYPES OF KERATINIZATION ANOMALIES. Arch Dermatol. 1963;87(1):2–3. doi:10.1001/archderm.1963.01590130008003
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