Fibroid Biopsy

Difference between a cyst lump, and cancer lump?
What is the difference in feel of a cancer lump, and a fibroid?
I have had the same lump in my breast for about a year, and my doctor says it’s fibroid cyst. She did not run a biopsy, but did to a mammogram. The lump has not gotten bigger throughout the year.
I did notice another lump in the same breast about 2 weeks ago.
I’m a bit worried, as my breast has has had a dull pain in it for the past month. I have been drinking a lot of caffeine though.
A cyst has a round shape, whereas cancer will have an irregular shape. Also, a cyst will have what is called an “encapsulated” feel when you touch it…you can sort of move it around under your skin. Not so with cancer.
Malpractice Medical Myomectomy Vaginal Fibroid Removal Surgery 2