Hi I’m sorry to hear about your mum.

have a look at Breast Cancer Now website

DCIS ductal carcinoma in situ 

LCIS lobular carcinoma in situ

ER is oestrogen and PR is progesterone , both positive 80% of breast cancers are oestrogen positive .

HER is the extra oestrogen receptor test , that’s negative . 

KI67 is the marker that tells you how quickly the cells are dividing . I think that’s 10% ?

I have lobular breast cancer which is ER\PR + HER -. I find have my ki score yet but it’s grade 2.

can your mum speak to her breast cancer nurse ?

That sounds like she’s received a copy of the letter to her GP. 
It would be worth her arranging to discuss it with her GP.

After I did, they gave me priority for same day GP appointments but asked me not to tell anyone! 

Good luck!
Dave

Thank you that’s really helpful. 

Thank you for your reply. I will suggest speaking to the doctor as an option as I think the next appt with the consultant is still over a week away which is a lot of time to sit and wait.