Papilloma refers to a benign epithelial neoplasm with the typical finger-like projections. It seldom turns malignant. Differential diagnostics include papillary adenoma of the mamilla, which is a benign tumour of a mammary duct. It presents as an irritated lump in the mamillary area and causes mamillary discharge. The rare Paget’s disease also presents as a unilateral eczema-like lesion of the mamilla. However, it is almost always associated with an intraductal or invasive carcinoma in the background.