%0 Journal Article %T Scratching suspected porokeratosis lesion, simple and quick maneuver that facilitates its diagnosis %V 10 %N 4 %P 367-368 %U http://www.odermatol.com/issue-in-html/2019-4-13-porokeratosis/ %X Porokeratosis are morphologically distinct keratinization disorders, characterized clinically by papules or hyperkeratotic plaques surrounded by a linear raised border. Sometimes the border (the most characteristic change in porokeratosis, and practically the definition of diagnosis) is not easily identifiable. We demonstrated a clinical maneuver that facilitated the visualization of this more typical aspect in frame. A wooden tongue depressor was used to gently scratch one of the lesions. This maneuver revealed a desquamative halo in the hyperkeratotic lesion - better identifying the clinical aspect typical of the porokeratosis. The use of scratching may play a fundamental role in the diagnostic suspicion of porokeratosis and should be applied whenever the clinical history suggests this hypothesis as a differential diagnosis. %G en %J Our Dermatology Online %A Souza, Souza %A Furtat, ThaĆ­s Marques %A Reinisch, Nicole %A Dario, Paulo Henrique Pacheco %D 2019-10-03