Accessory appendicular artery

Dr Daniel J Bell ◉ and Dr Abhinav Ranwaka et al.

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).

References

Anatomy: Abdominopelvic

Anatomy: Abdominopelvic

skeleton of the abdomen and pelvis
muscles of the abdomen and pelvis
spaces of the abdomen and pelvis
- anterior abdominal wall
  - sternocostal triangle
- posterior abdominal wall
- abdominal cavity
  - peritoneum
  - retroperitoneum
- pelvic cavity
  - pelvic peritoneal space
    - rectouterine pouch (pouch of Douglas)
    - rectovesical pouch
  - retropubic space (of Retzius)
  - paravesical space
    - lateral fossa
    - supravesical fossa
  - presacral space
  - canal of Nuck
  - pudendal canal
  - obturator canal
- perineum
abdominal and pelvic viscera
blood supply of the abdomen and pelvis
lymphatics
- lymph node groups
- cisterna chyli
innervation of the abdomen and pelvis
- lumbar plexus
- sacral plexus

Article information

rID: 31394

System: Vascular, Gastrointestinal

Section: Anatomy

Synonyms or Alternate Spellings:

Artery of Seshachalam

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