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A Case for Diagnosis. Presented by Dr. Fraser for Dr. Schwartz.
C. Z., a man, aged 19, had been presented previously at the January meeting of the New York Dermatological Society, but the diagnosis had not been determined.
Dr. Pollitzer: I am unable to make a diagnosis in this case. I hardly feel like accepting the suggestion of parakeratosis variegata. In the first place, the lesions are almost exclusively on the extremities, where they are rarely found in parakeratosis variegata unless the distribution is almost universal; the lesions are small, round papules, and they do not correspond to the eruption in parakeratosis variegata; above all, the linear arrangement on the arms is like that one sometimes finds in lichen planus, and it has never been described found in parakeratosis variegata; finally hyperkeratosis such as is a striking feature of the lesions on the feet in this case, has
Parounagian MB. NEW YORK ACADEMY OF MEDICINE, SECTION ON DERMATOLOGY AND SYPHILIS. Arch Derm Syphilol. 1927;16(2):216–228. doi:10.1001/archderm.1927.02380020088015
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