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Hypertrophied Renal Column

Renal columns (columns of Bertin) are cortical renal tissue surrounding the renal papillae. A hypertrophied renal column, usually located in the midportion of the kidney, may raise suspicion of a tumor on imaging. It has no clinical significance.

Differential Diagnosis of Renal Pseudotumor

• Fusion anomalies of the kidneys in crossed renal ectopia
• Persistent fetal lobulation
• Dromedary hump: harmless normal anatomic variant in which the lateral border of the left kidney shows a hump-like bulge. It is thought to be caused by molding from the adjacent spleen.
• Compensatory hypertrophy after infections or infarctions

References

  Deutsche Version: Hypertrophierte Columna renalis

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