“…[6][7][8][9] The positive rate of estrogen receptor and progesterone receptor was low. Estrogen receptor was positive in 5 (20.0%) of 25 cases, 6,8,10,11 and progesterone receptor was positive in 3 (14.2%) of 21 cases. 6,8,11 The chief complaint of 39 of the 45 cases was a breast mass, and only 3 cases, including our cases, demonstrated a bloody nipple discharge.…”