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Abstract：
A change in the shape or appearance of the nipple-areola complex, especially if it is unilateral and recent appearance, is a sign of underlying breast tumor. Breast imaging is then required (grade C). Any erythematous lesion of the nipple or nipple-areola can be a Paget\'s disease, an adenoma of the nipple or a nipple eczema. Clinical course and pattern can point to a diagnosis without sufficient specificity (LE4). If nipple eczema is suspected, it is recommended to perform a test treatment with topical corticosteroids. In case of failure or if a Paget\'s disease of the breast is suspected, a biopsy must be done. When indicated, it is not possible to recommend a biopsy modality (scrape cytology, punch biopsy, nipple core biopsy and surgical excision) compared to another. When imaging exploration of the nipple-areola complex is necessary, ultrasound and mammography are recommended as first-line. In the absence of signal, an MRI is recommended as second-line (grade C).
摘要：
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