Aberrant inferior suprarenal vessels crossing posterior pararenal space: a case report

Aberrant inferior suprarenal vessels crossing posterior pararenal space: a case report

Maryna Kornieieva, Andrew Vierra, Abdul Razzaq

American University of Caribbean School of Medicine, Lowlands, Sint Maarten

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During routine educational dissection of a cadaver (63-year-old, male, USA), an atypical course of the left inferior suprarenal vessels via the posterior pararenal space was discovered.
Detailed analysis of the abdominal vascular pattern showed that the atypical inferior suprarenal artery represented a terminal branch of the left inferior phrenic artery. The last one branched off from the very beginning of the left renal artery, ascended between the fibers of the left crus of the diaphragm, then ran laterally giving off muscular branches and, finally, descended along the costal part of the diaphragm to the left posterior pararenal space. The terminal branch of the inferior phrenic artery pierced the retrorenal fascia and entered the perirenal space as an atypical left inferior suprarenal artery. It ran upward and medially crossing the anterior surface of the kidney to reach and supply the lower pole of the left suprarenal gland. The left inferior phrenic vein accompanied the artery taking a similar course. It received numerous tributaries passing via the posterior pararenal space, drained the inferior suprarenal vein, and opened into the left renal vein.
Such anomalous pararenal vascular pattern is a challenge for surgeons performing open procedures on retroperitoneal organs, not to mention specialists employing minimally invasive laparoscopic techniques. The anatomical variation reported in this paper requires urgent attention of the related specialists.

Keywords: inferior phrenic artery, inferior suprarenal artery, accessory renal vessels, pararenal space.

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How to cite this article:

Maryna Kornieieva, Andrew Vierra, Abdul Razzaq. Aberrant inferior suprarenal vessels crossing posterior pararenal space: a case report. International Journal of Case Reports, 2019 4:86. DOI: 10.28933/ijcr-2019-07-08051


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