Cases of pityriasis rubra bearing out the requirements of the original description are of such rare occurrence that the following was considered worthy of report.
Regarding the relation of this to other forms of generalized dermatitis, Hebra claimed, in his description, three distinct characteristics, namely, universal dermatitis, scaling and fatal termination. Since his time some writers have been inclined to take a less certain view regarding the fatal ending. Kaposi mentions a case of possible cure, which, however, he does not substantiate, as he lost track of the patient; he also cites another case from the oral statement of a physician.
In the literature of the subject there are no reported recoveries in cases that extended over a long period, and inasmuch as Hebra in an experience with fifteen cases did not modify his opinion, it would seem that more conclusive evidence than has been advanced was necessary to prove
WALLHAUSER HJF. A CASE OF PITYRIASIS RUBRA (HEBRA). JAMA. 1912;LIX(1):10–13. doi:10.1001/jama.1912.04270070012004
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