My Biopsy Shows No "HER2+" - What is it HER2+?

NSJ2

Hi All:

My biopsy shows no info regarding HER2+. How would I know if it was?

My biopsy reads:

Left Breast, Lower Inner Quadrant, Needle Core Biopsy. Ductal Carcinoma In SITU with the following features:

Size (Extent of DCIS): DCIS Involves three cores with a maximum linear extent of 0.6cm

Location: Left Breast, Lower Inner Quadrant

Nuclear Grade: 1

Architectural Pattern: Cribiform, Papillary

Necrosis: Focal

Microcalcifications: Not identified

Estrogen Receptor: DCIS is positive (Allred score: 8/8)

Progestron Receptor: DCIS is positive (Allred score: 8/8)

BLinthedesert

HER2 is not measured routinely for DCIS, only for invasive disease.  If you have invasive disease then there is a drug that is used for HER2+ women, however, that drug (Herceptin) is not useful for DCIS (or it has not be shown to be useful) - therefore, since it is not used to make treatment choices is not measured.  

I hope this helps.  It looks like you have, at this point, favorable pathology (grade 1 is good, 6mm is good)!!  I will keep my fingers crossed that the final pathology concurs with what you  have so far.  

NSJ2

It does help. Thank you for explaining that, BLinthedesert. You're so kind and knowledgeable in sharing BC info. It's much appreciated.

NSJ2