Neuromas - though i hadn't heard about lipomas - are yes, very common in people with RSD. The problem is that having them removed is an invasive procedure which, of course, people with RSD should avoid at all costs because invasive procedures can cause the RSD to spread.
Unless the neuroma itself is causing unbearable pain or a mechanical blockage problem in the body you might consider some other type of treatment (acupuncture?)(Ultrasound?) or just leaving it.

Hard for an adolescent to have unsightly bumps