Hi - Not sure what the "p" stands for (pathology?), but the T1c is tumor size (1 centimeter, or in your case, 1.7?); the N0 is "zero lymph nodes involved;" and the M is metastasis - and I'd assume, since 0 lymph nodes, the X means no metastasis. My totally unscientific guess is that you wouldn't need chemo. With that size tumor you'd be right on the border, but with no lymph node involvement, plus ER/PR-positive and HER2-negative, there are good post-treatment hormone drugs you can take to help prevent recurrence. If the doctor gives you a choice of having or not having chemo, ask to have the Oncotype-DX test - you're a perfect candidate. It'll tell you just how much chemo would actually help you. Best of luck - PJH
P.S. - Download this PDF called Understanding your Pathology Report - I think you'll find it interesting and helpful. Or, read this Layperson's Guide to Your Patholgy Report.