Abstract
The dorsal root ganglion (DRG) is a well-defined structure which contains the cell bodies of pseudounipolar neurons and sensory afferent fibers.1,2 While each DRG is distinctly separated with no clear connection/communication between them, there is an observable “cross-talk” phenomenon between them when they are individually stimulated, such that paresthesias are observed beyond the confines of the dermatome being affected. While there is no precise mechanism to explain this, transmission into/along the sympathetic nervous system (SNS) via the sympathetic chain is the most likely explanation.
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