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.James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. . It may be associated with diseases like hepatocellular carcinoma in racially predisposed groups.
See also Skin lesion List of cutaneous conditions Ushitaro Matsuura
References
External links