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Corona mortis, Latin for "crown of death", is a common variant vascular anastomosis between the external iliac artery or deep inferior epigastric artery and the obturator artery. It is reported to be present in a third of patients on routine multidetector CT examination 1,4.
Knowledge of this variant vascular anastomosis is critical for surgical planning and in pelvic trauma, as it is susceptible to vascular injury given its posterior relation to the superior pubic rami 2.
A study of 100 pelvic CTA scans 5 found this variant to be:
more common in females
more commonly unilateral than bilateral (2:1)
distance from the pubic symphysis ranges from 35-72 mm
vessel diameter ranges from 1.4-3.7 mm
not seen in smaller pelvises
potentially occluded in patients with known peripheral vascular disease
- 1. Smith JC, Gregorius JC, Breazeale BH et-al. The corona mortis, a frequent vascular variant susceptible to blunt pelvic trauma: identification at routine multidetector CT. J Vasc Interv Radiol. 2009;20 (4): 455-60. doi:10.1016/j.jvir.2009.01.007 - Pubmed citation
- 2. Darmanis S, Lewis A, Mansoor A et-al. Corona mortis: an anatomical study with clinical implications in approaches to the pelvis and acetabulum. Clin Anat. 2007;20 (4): 433-9. doi:10.1002/ca.20390 - Pubmed citation
- 3. Pua U, Teo LT. Prospective diagnosis of corona mortis hemorrhage in pelvic trauma. J Vasc Interv Radiol. 2012;23 (4): 571-3. doi:10.1016/j.jvir.2011.12.018 - Pubmed citation
- 4. Berberoğlu M, Uz A, Ozmen MM et-al. Corona mortis: an anatomic study in seven cadavers and an endoscopic study in 28 patients. Surg Endosc. 2001;15 (1): 72-5. Pubmed citation
- 5. Steinberg EL, Ben-Tov T, Aviram G, Steinberg Y, Rath E, Rosen G. Corona mortis anastomosis: a three-dimensional computerized tomographic angiographic study. Emergency radiology. doi:10.1007/s10140-017-1502-x - Pubmed