I don't understand pathology report...

Hi, iHEARTu!

This site actually has some good explanations of this.  You are ER/PR positive, with approx. 75% of the cancer cells that they examined showing positive for estrogen reception and 50% showing positive for progesterone reception.  Her2/Neu is a subset of the cell DNA that can overmultiply ("overexpress") on the surface of the cells.  There is no result showing here in your pathology that I can discern.  Here is the copy from this site's page on staging about the TNM staging system.  I've put your results in bold:

Doctors use a staging system to determine how far a cancer has spread. The most common system is the TNM staging system. You may hear the cancer described by three characteristics:

• size (T stands for tumor)
• lymph node involvement (N stands for node)
• whether it has metastasized (M stands for metastasis)

The T (size) category describes the original (primary) tumor:

• TX means the tumor can't be measured or found.
• T0 means there isn't any evidence of the primary tumor.
• Tis means the cancer is "in situ" (the tumor has not started growing into the breast tissue).
• The numbers T1-T4 describe the size and/or how much the cancer has grown into the breast tissue. The higher the T number, the larger the tumor and/or the more it may have grown into the breast tissue.

The N (node involvement) category describes whether or not the cancer has reached nearby lymph nodes:

• NX means the nearby lymph nodes can't be measured or found.
• N0 means nearby lymph nodes do not contain cancer.
• The numbers N1-N3 describe the size, location, and/or the number of lymph nodes involved. The higher the N number, the more the lymph nodes are involved.

The M (metastasis) category tells whether there are distant metastases (whether the cancer has spread to other parts of body):

• MX means metastasis can't be measured or found.
• M0 means there are no distant metastases.
• M1 means that distant metastases were found.
• 
  
• Hope that this helps!