Frontal linear scleroderma (also known as en coup de sabre or morphea en coup de sabre) is a type of linear scleroderma characterized by a linear band of atrophy and a furrow in the skin that occurs in the frontal or frontoparietal scalp. Multiple lesions of en coup de sabre may coexist in a single patient, with one report suggesting that the lesions followed Blaschkos lines. It gets its name from the perceived similarity to a sabre wound. Atrophoderma of Pasini and Pierini (also known as "Dyschromic and atrophic variation of scleroderma," "Morphea plana atrophica," "Sclérodermie atrophique demblée") is a disease characterized by large lesions with a sharp peripheral border dropping into a depression with no outpouching, which, on biopsy, elastin is normal, while collagen may be thickened. Atrophoderma of Pasini and Pierini affects less than 200,000 Americans and is classified as a rare disease by http://rarediseases.info.nih.gov. The disease results in round or oval patches of hyper-pigmented skin. The darkened skin patches may sometimes have a bluish or purplish hue when they first appear and are often smooth to the touch and hairless. Treatment
Throughout the years, many different treatments have been tried for morphea including topical, intra-lesional, and systemic corticosteroids. Antimalarials such as hydroxychloroquine or chloroquine have been used. Other immunomodulators such as methotrexate, topical tacrolimus, and penicillamine have been tried. Children and teenagers with active morphea (linear scleroderma, generalised morphea and mixed morphea: linear and circumscribed) may experience greater improvement of disease activity or damage with oral methotrexate plus prednisone than with placebo plus prednisone.
Some have tried prescription vitamin-D with success. Ultraviolet A (UVA) light, with or without psoralens have also been tried. UVA-1, a more specific wavelength of UVA light, is able to penetrate the deeper portions of the skin and thus, thought to soften the plaques in morphea by acting in two fashions: by causing a systemic immunosuppression from UV light, or by inducing enzymes that naturally degrade the collagen matrix in the skin as part of natural sun-aging of the skin. [1] However, there is limited evidence that UVA‐1 (50 J/cm2), low‐dose UVA‐1 (20 J/cm2), and narrowband UVB differ from each other in effectiveness in treating children and adults with active morphea. Epidemiology
Morphea is a form of scleroderma that is more common in women than men, in a ratio 3:1. Morphea occurs in childhood as well as in adult life. Morphea is an uncommon condition that is thought to affect 2 to 4 in 100,000 people. Adequate studies on the incidence and prevalence have not been performed. Morphea also may be under-reported, as physicians may be unaware of this disorder, and smaller morphea plaques may be less often referred to a dermatologist or rheumatologist. See also
List of cutaneous conditions

References
Further reading
JAMA Dermatology Patient Page. Morphea (Localized Scleroderma. Nicole M. Fett, MD. JAMA Dermatol. 2013;149(9):1124. doi:10.1001/jamadermatol.2013.5079. September 2013


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