Surrounding ipsilateral eruptive seborrheic keratosis as a warning sign of intraductal breast carcinoma and Paget's disease (Leser Trelat sign).

Paget disease of the breast, most often occurs in middle-aged women. Leser-Trelat sign is a rare cutaneous manifestation of internal malignancy that is usually associated with visceral-type adenocarcinoma. We report a patient with Paget disease of the nipple and intraductal carcinoma who presented with ipsilateral, eruptive grouped seborrheic keratoses of the areola and nipple of the breast.