Hi,Dear thanks for the query to HCM.
Cause of the lumps you have is as follows-
a-Multiple-Lipomatosis- which are -Benign and Non-Cancerous lumps.
Has no connection with the lump of the
Oral Cancer.So Dont worry for it being Cancerous.
Treatment-
I would advise you to Consult a Surgeon-Who would treat it as follow-
a-No surgery is needed as these lumps are not dangerous Like your Oral Cancer.
b-If any of the lump becomes painful-Surgical Excision with
Biopsy would be needed.
c-Eat less of chicken as it adds up more fat to your body and these lumps are of the Fat -below the skin of your body.
d-These lumps came to you by heritance from your family and your brother or sister may also have it.
2-Still if you are worried , You may get it removed -for psychological relief from Surgeon-on demand.
Hope this would help your worry to take proper steps for health.
Wellcome again if you have any more query in this regard.Have a Good Day.