Prosigna vs Oncotype

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I am age 45 and diagnosed with ILC, ER+, PR+, HER-.

I recently had a mastectomy and following my pathology report my consultant has suggested a genomic test to see if chemotherapy will be beneficial to me. My consultant has suggested using the Prosigna test, however I thought this was best for post menopausal women? And it seems Oncotype test is the test most widely used. 

I did ask my consultant and he said that they always use the Prosigna test and haven’t used the Oncotype in a couple of years.

Has anyone else who is premenopausal had the Prosigna test?

Any advice or insight would be much appreciated.