Retrorenal spleen

Last revised by Dr Yahya Baba on 18 Dec 2020

Retrorenal spleen refers to variant position of the spleen, when its inferior portion lies posterior to the upper pole of the left kidney.

This normal variant occurs in ~20% of patients, with the finding more common in patients who lie supine 1.

Recognition of this variant is important to avoid spearing the spleen during interventional procedures such as nephrostomy

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