my doctor says that its just cysts and i have asked many times but i looked on the symptoms of breast cancer and i have all the symptoms.. is it possible for a 16 year old to get breast cancer?

This is for my mom it says
”
Heterogeneous dense fibroglandualar tissue is seen in both breasts. Questioned nodule in the infermodeial aspect of the right breast is not seen on this mammogram and apears to have resolved. This map be a small cyst, which has resolved in the interval. There are a few benign scattered calcifications. A small nodule seen in the upper medical aspect of the left breast is stale. No interval dominant mass or suspicious clustered microcalcifications are seen”

What does this mean, in English please. – Easy to understand.