Other tests that are often conducted along with the PR test include:
Estrogen Receptor (ER) Test: Measures the presence of estrogen receptors in the cancer cells and is another indicator of how the tumor will respond to hormonal therapy. HER2 Test: Determines the overexpression of the HER2 protein, which can influence treatment options and prognosis. Genomic Assays: Tests like Oncotype DX and MammaPrint evaluate the activity of a group of genes in the tumor tissue to predict the likelihood of recurrence and benefit from chemotherapy.
