Accessory appendicular artery

Last revised by Dr Daniel J Bell ◉ on 29 Dec 2018

Citation, DOI & article data

Citation:

Ranwaka, A., Bell, D. Accessory appendicular artery. Reference article, Radiopaedia.org. (accessed on 04 Oct 2022) https://doi.org/10.53347/rID-31394

DOI:

https://doi.org/10.53347/rID-31394

Permalink:

https://radiopaedia.org/articles/31394

rID:

31394

Article created:

07 Oct 2014 by Dr Abhinav Ranwaka

Revisions:

14 times by 7 users - see full revision history

Systems:

Gastrointestinal, Vascular

Section:

Anatomy

Tags:

Synonyms:

Artery of Seshachalam

The accessory appendicular artery, also known as the artery of Seshachalam, is a branch of the posterior cecal artery. It arises from the ileocolic artery, and runs in the mesoappendix.

The exact prevalence of this accessory artery and its impact upon the risk of appendicitis varies among studies.

History and etymology

Accessory appendiceal arteries were described as early as 1905 ^3,4. A prominent Indian surgeon, T Sheshachalam, also described the appendiceal vascularization, including accessory appendiceal arteries, in 1930 ⁵, and so the vessel sometimes bears his name (anecdotally it is most commonly found in the Indian medical literature).