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The following case is reported because of the unusual association of purpura with pityriasis rosea and because of the unusual location and appearance of the herald patch of the latter disease.
REPORT OF A CASE
W. D., a policeman aged 41, consulted me for a pruritic eruption of three weeks' duration. Examination revealed two different types of lesions. One type consisted of the usual oval, scaly macules of pityriasis rosea occurring in abundance on the trunk, especially the lower part of the abdomen and the inguinal regions. They extended up to the chin and down to the lower third of the legs. The other type of lesion consisted of purpuric spots confined to the lower extremities. On the right calf was an oval hemorrhagic scaly area that had appeared three to four days before the general outbreak. No internal medication had been taken for at least four weeks
Hartman MS. PITYRIASIS ROSEA. Arch Derm Syphilol. 1944;50(3):201. doi:10.1001/archderm.1944.01510150053013
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