[Adenomas of the nipple]

A case of adenoma of the nipple is reported. Although this is a comparatively rare condition, knowledge of it is extremely important because clinically it simulates Paget's disease. A failure to recognise the pathology could therefore lead to mistaken diagnosis and consequent surgery which would create serious damage to the patient. According to almost all authors, it is a benign pathology and can therefore be treated with an intervention limited to removing the complete tumour. This for two reasons: the first is that if the tumour grows it can become painful, create a sense of tension and bleed in the erosive phase; the second, more important, is that malignant degeneration has been hypothesised. For these reasons it is essential to examine the other breast immediately and follow the patient over time to prevent unpleasant surprises.