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Nodular Scleroderma Revisited: Systemic Sclerosis Presenting as Annular Keloidal Sclerotic Plaques.
BACKGROUND: Nodular scleroderma, also known as keloidal scleroderma, is a rare variant of systemic sclerosis.
PURPOSE: The clinical features, pathologic findings and postulated pathogenesis of nodular scleroderma are discussed.
METHODS: A woman with previously undiagnosed systemic sclerosis who presented with nodular scleroderma is described. Using the PubMed database, a literature search was performed on keloidal scleroderma, nodular scleroderma, and systemic sclerosis.
RESULTS: Nodular scleroderma is characterized by firm plaques or nodules, which can mimic a keloid, that are typically located on the anterior orposterior upper trunk and the arms; they show pathologic changes of scleroderma, keloid, or hypertrophic scar. Akeloidal response of inflamed skin that is involved in an active fibrotic process inherent to systemic sclerosis, in individuals who are genetically predisposed to keloid formation, is the hypothesized pathogenesis.
CONCLUSION: Nodular scleroderma is rare. The authors' patient presented with diarrhea, dysphagia, fatigue, Raynaud's phenomenon, shortness of breath, and annular keloidal plaques of morphea whose biopsy showed features of hypertrophic scar; additional studies confirmed the diagnosis of the nodular scleroderma variant of systemic sclerosis. The possibility of systemic sclerosis should be entertained in patients who present with nodularor keloidal plaques that morphologically resemble morphea and have histologic findings of a scar or a keloid-especially if there are associated symptoms suggestive for systemic sclerosis.
PURPOSE: The clinical features, pathologic findings and postulated pathogenesis of nodular scleroderma are discussed.
METHODS: A woman with previously undiagnosed systemic sclerosis who presented with nodular scleroderma is described. Using the PubMed database, a literature search was performed on keloidal scleroderma, nodular scleroderma, and systemic sclerosis.
RESULTS: Nodular scleroderma is characterized by firm plaques or nodules, which can mimic a keloid, that are typically located on the anterior orposterior upper trunk and the arms; they show pathologic changes of scleroderma, keloid, or hypertrophic scar. Akeloidal response of inflamed skin that is involved in an active fibrotic process inherent to systemic sclerosis, in individuals who are genetically predisposed to keloid formation, is the hypothesized pathogenesis.
CONCLUSION: Nodular scleroderma is rare. The authors' patient presented with diarrhea, dysphagia, fatigue, Raynaud's phenomenon, shortness of breath, and annular keloidal plaques of morphea whose biopsy showed features of hypertrophic scar; additional studies confirmed the diagnosis of the nodular scleroderma variant of systemic sclerosis. The possibility of systemic sclerosis should be entertained in patients who present with nodularor keloidal plaques that morphologically resemble morphea and have histologic findings of a scar or a keloid-especially if there are associated symptoms suggestive for systemic sclerosis.
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