Ganglion impar

Last revised by Nak Hyun Kim on 6 May 2023

Citation, DOI, disclosures and article data

Citation:

Hacking C, Kim N, Ganglion impar. Reference article, Radiopaedia.org (Accessed on 03 Oct 2023) https://doi.org/10.53347/rID-154657

DOI:

https://doi.org/10.53347/rID-154657

Permalink:

https://radiopaedia.org/articles/154657

rID:

154657

Article created:

17 Oct 2022, Craig Hacking ◉ ◈

Disclosures:

At the time the article was created Craig Hacking had the following disclosures:

Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Craig Hacking's current disclosures

Last revised:

6 May 2023, Nak Hyun Kim

Disclosures:

At the time the article was last revised Nak Hyun Kim had no financial relationships to ineligible companies to disclose.

View Nak Hyun Kim's current disclosures

Revisions:

6 times, by 2 contributors - see full revision history and disclosures

Systems:

Central Nervous System, Gastrointestinal, Urogenital, Spine, Interventional

Sections:

Anatomy

Synonyms:

ganglion of Walther

The ganglion impar, also know as the ganglion of Walther, is the midline autonomic ganglion located in the lower pelvis. It is the most distal convergence of the pelvic sympathetic chain which is usually located anterior to the coccyx. It can be found anywhere between the sacrococcygeal joint and the tip of the coccyx and may occasionally be paired, unilateral or absent entirely.

The ganglion contains nociceptive afferent fibers from and sympathetic efferent fibers to the perineum and lower pelvic viscera including the distal rectum, distal urethra, vulva, scrotum, and distal third of the vagina ⁵.