radiation-induced atypical vascular lesions (AVLs)

I've had radiation treatment twice for breast cancer in 2009 and 2019. In 2021, I developed four atypical vascular lesions on my mastectomy scar. They are a rare complication of radiation treatment and had to be removed. The surgeon removed them because in some cases these can lead to angiosarcoma, which is a death sentence.

I am just wondering if anybody else here has had them. The sarcoma doctor at NYU said I was one of only 200 cases worldwide.