Morphea (circumscribed scleroderma, localized scleroderma) in the upper arm. A symptomless purplish patch has become light-coloured and hardened in the middle. With the years, the lesion often softens and leaves a hypo- or hyperpigmented spot at the site. There may be multiple patches. It is important to emphasize to the patient that the disease is harmless. Systemic scleroderma begins with completely different skin symptoms so there is no problems in differential diagnostics. UVA therapy may be tried if recommended by a dermatologist.