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Jul 28, 2020 02:48PM
Based just on size it would be a stage 1, however yes, you have to wait on nodes and the pathology report after surgery for staging. Sometimes the tumors are found to be larger or smaller than on imaging too. Plus, again, node status will make a difference as well.
Here's a little chart : Stage 0
This stage describes noninvasive ("in situ") breast cancer. Ductal carcinoma in situ (DCIS) is an example of stage 0 cancer. In DCIS, the precancerous cells may have just started to form but haven't spread beyond the milk ducts. Stage 1
This stage marks the first identification of invasive breast cancer. At this point, the tumor measures no more than 2 centimeters in diameter (or about 3/4 inch). These breast cancers are subdivided into two categories (1A and 1B) based on a number of criteria.
Stage 1A means that the tumor is 2 centimeters or smaller, and that the cancer hasn't spread anywhere outside the breast.
Stage 1B means that small clusters of breast cancer cells are found in the lymph nodes. Typically at this stage, either no discrete tumor is found in the breast or the tumor is 2 centimeters or smaller. Stage 2
This stage describes invasive breast cancers in which one of the following is true:
- The tumor measures less than 2 centimeters (3/4 inch), but has spread to lymph nodes under the arm.
- The tumor is between 2 and 5 centimeters (about 3/4 inch to 2 inches) and may or may not have spread to lymph nodes under the arm.
- The tumor is larger than 5 centimeters (2 inches), but hasn't spread to any lymph nodes.
- No discrete tumor is found in the breast, but breast cancer larger than 2 millimeters is found in 1–3 lymph nodes under the arm or near the breastbone.
Stage 2 breast cancer is divided into stage 2A and 2B.
In stage 2A, no tumor is found in the breast or the tumor is smaller than 2 centimeters. Cancer may be found in the lymph nodes at this point, or the tumor is larger than 2 centimeters but smaller than 5 centimeters and the cancer has not spread to the lymph nodes.
In stage 2B, the tumor may be larger than 2 centimeters but smaller than 5 centimeters, and breast cancer cells are found in the lymph nodes, or the tumor may also be larger than 5 centimeters, but cancer hasn't spread to the lymph nodes. Stage 3
Stage 3 cancers have moved to more breast tissue and surrounding areas but have not spread to distant areas of the body.
- Stage 3A tumors are either larger than 5 centimeters (2 inches) and have spread to one to three lymph nodes under the arm, or are any size and have spread into multiple lymph nodes.
- A stage 3B tumor of any size has spread to tissues near the breast — the skin and chest muscles — and may have spread to lymph nodes within the breast or under the arm.
- Stage 3C cancer is a tumor of any size that has spread:
- to 10 or more lymph nodes under the arm
- to lymph nodes above or beneath the collarbone and near the neck on the same side of the body as the affected breast
- to lymph nodes within the breast itself and under the arm
12/14/2017, DCIS/IDC, Left, 4cm, Stage IIB, Grade 2, 1/2 nodes, ER+/PR+, HER2-
1/16/2018, LCIS, Right
1/31/2018 Lumpectomy: Left; Lymph node removal: Sentinel
4/11/2018 Whole-breast: Breast
6/25/2018 Arimidex (anastrozole)