Surgery The proper treatment for lobular carcinoma in situ (LCIS) includes which of the following components? A Close follow-up. B Radiation after excision. C Mirror-image biopsy of the opposite breast D Mastectomy and regional node dissection 💡 Explanation The proper treatment for lobular carcinoma in situ (LCIS) includes which of the following components? ✓ Correct Answer: A. Close follow-up.