Commonest cause of blood discharge from the nipple is: (A) Duct carcinoma, (B) Duct papilloma, (C) Chronic cystic mastitis, (D) Cystosarcoma phyllodes
Answer is B. Duct papilloma is the Commonest cause of blood discharge from the nipple Duct papilloma are epithelium lined true polyps of breast lactiferous ducts it is usually single,from a single lactiferous duct it blocks the duct causing ductal dialatation ref ;(page no;528) 5th edition of SRB&;S Manual of SURGERY