In May, 1918, Heidingsfeld1 reported a case of "atrophia maculoso varioliformis cutis." In the following number of the journal MacKee and Parounagian2 give a complete clinical and histologic record of two cases that they called "folliculitis ulerythematosa reticulata" and, in the course of the survey of the literature of these peculiar and rare conditions, refer to Heidingsfeld's case, while at the same time recognizing its difference to theirs. When I saw these cases I was under the impression that though they differed somewhat clinically, we should establish their identity histologically, for I had had two such cases, the one, identical with Heidingsfeld's, which I3 exhibited at the Manchester Dermatological Society in 1912 and the other, the facsimilie of MacKee's, which I demonstrated in 1914. Lately I investigated the cases histologically and found that my impression was incorrect. Heidingsfeld, unfortunately, was not able to make a biopsy.
SAVATARD L. VARIOLIFORM ATROPHIC FOLLICULITISFOLLICULITIS ATROPHICANS VARIOLIFORMIS. Arch Derm Syphilol. 1920;2(6):743–746. doi:10.1001/archderm.1920.02350120071009
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