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Medullary nephrocalcinosis

Case contributed by Dr Abdallah Al Khateeb


Known case of renal tubular acidosis type 1.

Patient Data

Age: 30 years
Gender: Male

Two X-Ray KUB images of the same patient at different times, showing nephriform distribution of heavy calcifications.


These calcifications are exerting posterior acoustic shadowing that obscured the renal sinus.


CT KUB better shows these calcifications that are involving the medulla and sparing the cortex.

Case Discussion

This case well demonstrates medullary nephrocalcinosis due to renal tubular acidosis type 1.

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