23rd December 2021

A 42-year old female with a history of Sjogren’s syndrome presented with right flank pain

A 42-year old female with a history of Sjogren’s syndrome presented with right flank pain. A CT KUB was performed which revealed a right renal stone. The stone was removed via a percutaneous nephrostomy. Analysis of the renal stone showed that it was made up of calcium phosphate. An ABG was performed which revealed a hyperchloremic metabolic acidosis. A urine dipstick showed alkaline urine.  What is the cause of the patient’s above findings?

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