What is a neuroma?

Neuroma represents abnormal growth of neural tissue that can be from nerves, the myelin sheath, or other nervous structure. The growth usually is localized and benign; less commonly it is malignant. Neuromas may form at the end of a cut nerve, along the course of a regenerated nerve or as result of disease, compression, or disease. Regardless of location, neuromas pathologically appear similar to regenerating small nerve fibers and are prone to generating spontaneous discharges both at the area of the neuroma and at the dorsal root ganglion. These aberrant discharges may be caused by mechanical stimulation or by changes in the local environment such as ischemia or electrolyte disturbances, and may be associated with pain.


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