Pityriasis rotunda

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Pityriasis rotunda
Other names: Pityriasis circinata,[1] Tinea circinata[2]
Hyperpigmented, well-demarcated, perfectly round, dry, and ichthyosis-form scaly lesion on the lower abdomen.

Pityriasis rotunda is a disorder of keratisation of the skin that manifests as a perfectly circular, scaly patches on the torso and proximal portions of the extremities.[1] It may be associated with diseases like hepatocellular carcinoma in racially predisposed groups.[3]

See also


  1. 1.0 1.1 James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.: 566 
  2. Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. pp. Chapter 10. ISBN 978-1-4160-2999-1.
  3. Medscape. "Pityriasis rotunda". WebMed LLC. Archived from the original on 20 April 2012. Retrieved 6 July 2012.

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