| Pityriasis rotunda | |
|---|---|
| Other names | Pityriasis circinata, tinea circinata |
| Specialty | Dermatology |
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. It may be associated with diseases like hepatocellular carcinoma in racially predisposed groups.