Linear atrophoderma, first described by Moulin, is an acquired unilateral dermatitis localized along the Blaschko lines. It affects children or adolescents of both genders, involving the trunk and the limbs. It is, presumably, a rare cutaneous form of mosaicism. The differential diagnosis of atrophoderma of Moulin involves congenital dermopathies along the Blaschko lines, atrophoderma of Pasini and Pierini, and linear scleroderma. We present here a peculiar case of linear atrophoderma affecting a teenager.
[Show abstract][Hide abstract] ABSTRACT: Linear atrophoderma is a rare disease, first described by Moulin in 1992 in 5 patients. It is an acquired unilateral hyperpigmented, depressed band-like areas following the lines of Blaschko. It affects children or adolescents of both genders involving the trunk or the limbs. It is considered to be a rare cutaneous form of mosaicism.
A 39-year-old woman with a 22 years history of unilateral slightly depressed hyperpigmented lesion on her neck was admitted to us. The skin texture was normal and there were no signs of induration or sclerosis. The histopathological examination revealed a normal epidermis outlined by a hyperpigmented basal layer. In the papillary dermis proliferation of superficial vessels with mild lymphocytic infiltrate and melanin-laden macrophages were present. The collagen fibres and elastic fibres were normal. The clinical and histopathological features confirmed the diagnosis of linear atrophoderma of moulin. We discussed the case according to the other cases reported in the literature.
Approximately 28 cases of linear atrophoderma have been reported in literature. The present case has the charecteristic clinical and histopathological features of linear atrophoderma as defined by Moulin, but the localization of the lesion is unusual.
Journal of Dermatological Case Reports 09/2011; 5(3):47-9. DOI:10.3315/jdcr.2011.1074
[Show abstract][Hide abstract] ABSTRACT: Linear atrophoderma of Moulin (LAM) is a rare dermatologic disorder characterized by a hyperpigmented atrophoderma that consistently follows the lines of Blaschko. There are many clinical and histologic similarities between LAM, atrophoderma of Pasini and Pierini (APP), and morphea, and whether LAM represents part of a disease spectrum or its own distinct entity is debated. This case of a 16-year-old boy with LAM supports the hypothesis that LAM, APP, and morphea are a spectrum of disorders rather than unique entities. Although the patient's overall clinical picture supports a diagnosis of LAM with hyperpigmented, depressed lesions following the lines of Blaschko and perivascular lymphocytic infiltrate on biopsy, the bilateral presentation typical of APP, collagen entrapment of eccrine ducts typical of morphea, and changes in dermal collagen illustrate features spanning all three disorders, suggesting a relationship between these conditions that represents a spectrum of disease. Furthermore, a review of all reported cases of LAM in the literature suggests an evolving definition beyond what Moulin and colleagues originally described, including features related to those of APP and morphea.
[Show abstract][Hide abstract] ABSTRACT: Linear atrophoderma of Moulin is a rare, acquired, linear dermatosis. We present a 17-year-old girl with multiple asymptomatic brownish atrophic plaques in a zosteriform distribution on the left side of the trunk. Clinical presentation and dermatopathology was compatible with the diagnosis of linear atrophoderma. Twenty years after its initial description by Moulin, there are yet a limited number of case reports and unanswered questions regarding this entity.
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