Dear Ms Regina,
> As you have rightly suspected - the spelling is not right!
> One is aneurysm
- swelling of artery
(blood vessel). It will pulsate; has different colour...
We don't understand 'memolism' ?! - may be you mean embolism???
> It is difficult to comment on your lump - there could be several reasons - a lymph node from scalp or ear infection
- even lice!) / a simple boil /sebaceous cyst / dermoid cyst
/ bone cyst and so on - there are several.
> The best person to diagnose will be general surgeon
> The sure way to diagnose is biopsy
(removal and analysis)
All the best