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  • Title: Dermoscopic features of skin lesions in patients with mastocytosis.
    Author: Vano-Galvan S, Alvarez-Twose I, De las Heras E, Morgado JM, Matito A, Sánchez-Muñoz L, Plana MN, Jaén P, Orfao A, Escribano L.
    Journal: Arch Dermatol; 2011 Aug; 147(8):932-40. PubMed ID: 21844452.
    Abstract:
    OBJECTIVES: To evaluate dermoscopic features in a group of 127 patients with mastocytosis in the skin and to investigate the relationship between different dermoscopic patterns and other clinical and biological characteristics of the disease. DESIGN: Clinical and laboratory data were compared among patients with mastocytosis grouped according to the different dermoscopic patterns. SETTING: Patients were selected from the Instituto de Estudios de Mastocitosis de Castilla La Mancha and the Department of Dermatology of Hospital Universitario Ramón y Cajal from April 1 through September 30, 2009. Patients Overall, 127 consecutive patients (70 females [55.1%] and 57 males [44.9%]; median age, 17 years; range, 0-81 years) with mastocytosis in the skin were included in the study. MAIN OUTCOME MEASURES: Evaluation of dermoscopic patterns and investigation of potential predictive factors for more symptomatic forms of the disease according to the need for daily antimediator therapy. RESULTS: Four distinct dermoscopic patterns were observed: yellow-orange blot, pigment network, reticular vascular pattern, and (most frequently) light-brown blot. A reticular vascular pattern was identified in all telangiectasia macular eruptiva and some maculopapular mastocytosis. In turn, all patients with mastocytoma displayed the yellow-orange blot pattern. The reticular vascular dermoscopic pattern was associated with the need for daily antimediator therapy; this pattern, together with serum tryptase levels and plaque-type mastocytosis, represented the best combination of independent factors to predict the need for maintained antimediator therapy. CONCLUSIONS: Dermoscopy is a feasible method for the subclassification of mastocytosis. Of note, a reticular vascular pattern is more frequently associated with the need for antimediator therapy.
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