Hi,Dear.Thanks for the query to HCM virtual Clinic.
I am Dr.Savaskar attending on your query.I studied your query and understood your health concerns about your Sister.
Cause of lumps on the lip-
You seem to have bump which needs to be confirmed and ruled out for any adenocarcinoma of the lip,due to tobacco.The vein to the lump indicates its vascularity.
I would advise FNAC
biopsy and excision biopsy later on by ER Surgeon.
This is how you plan treatment with your doctor.
Hope this would resolve your query.
Write good review and hit thanks after reading this reply.
Welcome for any further query to HCM and to ME.
Wishing you early recovery.
Dr.Savaksar M.N.
M.S.Genl-CVTS,
Senior Surgical Consultant.