Pityriasis rotunda is:
Pityriasis rotunda - Pityriasis rotunda is described as a persistent, large, sharply defined circular patch of dry ichthyosiform scaling with no inflammatory changes. Variant of Ichthyosis Fixed, annular, scaling, dry-skin change More often seen in the African and Asian races Associated with neoplasia, paicularly Hepatocellular carcinoma.
Tumours of skin
Fungal infection
Bacterial infection
Pityriasis affecting nail
Variant of Ichthyosis
Variant of Ichthyosis