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I am submitting this report of a case of pityriasis rosea because of the following unusual features: (1) a second attack; (2) the long period of time elapsing between the appearance of the herald patch and the general eruption (24 days); (3) the unusual location of the herald patch (forehead), and (4) the unusual characteristics of the herald patch.
REPORT OF A CASE
H. D., a housewife aged 28, first appeared for treatment in February, 1948, presenting a typical eruption of pityriasis rosea. The general eruption had occurred two weeks previously, following by one week the appearance of a herald patch on chest. All lesions cleared within six weeks, during which period ultraviolet irradiation was administered once or twice weekly.
She again appeared in November, 1951, with another typical eruption of pityriasis rosea, except for an atypical lesion on the right side of the forehead at the hairline. This was