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Definition

noun

A single, unpaired paravertebral ganglion located in the coccygeal portion of the sympathetic trunk.

Supplement

A local coccygeal ganglion block is found to give significant relief from coccydynia (tailbone pain or coccyx pain).

Synonyms:

• coccygeal ganglion
• ganglion of Walther

See also: paravertebral ganglia