Which one of the following is TRUE regarding neuromas?
a. They are a form of cancer of neurons within the parasympathetic component of the autonomic nervous system.
b. They are not really tumors but are instead they are a harmless elongated growth of a peripheral nerve following an amputation.
c. They are malignant tumors of bone often requiring amputations of the femur.
d. They are like atheromas, but do not metastasize into lymph nodes.