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To the Editor.—
Pityriasis rosea, we said once, should disappear within two months (Arch Dermatol 107:65, 1973). If it does not, change the diagnosis to digitate dermatosis.The intent of the Letters section is not only to remark about previously published manuscripts, but also to offer a new observation, a new technique, or to describe an interesting patient. An attempt is made to publish most letters that are received without subjecting them to multiple critical reviews, and proved scientific validity is not a prerequisite factor. —Eds.
Lynfield YL. Persistent Pityriasis Rosea. Arch Dermatol. 1973;107(6):916. doi:10.1001/archderm.1973.01620210076019