A 45-year-old woman presents with a weeping eczematoid lesion of her nipple. Which of the following statement is false concerning her diagnosis and management?
Treatment is with warm compresses and oral antibiotics Biopsy of the nipple-revealing malignant cells within the milk ducts is invariably associated with an underlying invasive carcinoma The appropriate treatment is mastectomy The lesion always represents a high-risk disease with a significant risk of subsequent metastatic disease