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Pityriasis RotundaPityriasis Rotunda. Pityriasis rotunda (PR) is an idiopathic, chronic dermatosis that features characteristic discrete, round, scaly, pigmented patches.
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Dermatologic Manifestations of Paraneoplastic Syndromes...no single treatment is considered effective. Acquired ichthyosis Acquired ichthyosis (AI) is extremely rare and...combination of oral retinoids and ...