Hi, welcome to HCM,
Myxoma means localised growth of myometrium
. Myometrium is muscular portion of uterus.
It is a benign condition. If it is large it may cause increased bleeding during menses. In your case the size of myoma
is very small. It is not dangerous at all, dont worry.
If you are having problem of incresed bleeding or postmenopausal bleeding (depending on your menstrual history) then consult your gynecologist for treatment.