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AlaskaAngel · 03-14-2006, 08:51 PM

Maria,

There are 4 "HER's" (HER1, HER2, HER3, HER4) and people with breast cancer can have more than one of them at the same time.

That is completely different from the +'s. There is no such thing as HER++++, only HER2+, HER2++, or HER2+++. The plusses tell us just how strongly HER2 a cancer is. HER2+++ means very strongly HER2 positive.

A.A.

03-14-2006, 08:51 PM	#2
AlaskaAngel Senior Member Join Date: Sep 2005 Location: Alaska Posts: 2,018	Differences Maria, There are 4 "HER's" (HER1, HER2, HER3, HER4) and people with breast cancer can have more than one of them at the same time. That is completely different from the +'s. There is no such thing as HER++++, only HER2+, HER2++, or HER2+++. The plusses tell us just how strongly HER2 a cancer is. HER2+++ means very strongly HER2 positive. A.A.