Case for diagnosis. Unilateral nodule on the nipple: erosive adenomatosis of the nipple - Raúl Gerardo Mendez-Flores; Karen Uriarte-Ruiz; María Elisa Vega-Memije; Daniela Ruiz-Gomez; Sonia Toussaint-Caire (Sociedade Brasileira de Dermatologia, 2023)