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ichthyosis vulgaris. Type 1 most often occurs with liver and stomach cancer.Pityriasis rotunda is a rare skin disease characterized by round, scaly, pigmented patches that mainly occur on the trunk, arms and legs. There are two types of pityriasis rotunda. Type 1 is seen mainly in East/Southeast Asian and South African individuals older than 60 years, and is often associated with internal disease or malignancy (cancer). Type 2 occurs in lighter skinned individuals younger than 40 years, and often in several members of the same family. Type 2 pityriasis rotunda is not associated with internal disease or malignancy. The cause of pityriasis rotunda is unknown, but it may be a variant of
Last updated: 1/19/2012
- Pityriasis rotunda . DermNet NZ. July 2011; http://dermnetnz.org/scaly/pityriasis-rotunda.html. Accessed 1/17/2012.
- DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.
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