Keywords: distal renal tubular acidosis, hypercalciuria; His urinary calcium excretion ranged from 2.8 to 4.1 mg/kg per day. No glucosuria, hyperaminoaciduria nerve deafness; nephrocalcinosis; Steinstrasse or hyperphosphaturia were found. After diagnosis of DRTA with nerve deafness, the patient was maintained on oral treatment with sodium bicarbonate at a dose

A 74-year-old man presented to the renal unit 5 years ago with end-stage renal failure due to nephrocalcinosis. He has had numerous small bowel resections in the past for Crohn’s disease, resulting in short bowel syndrome. The nephrocalcinosis was due to hyperoxaluria. His abdominal radiograph (Figure 1) shows the cortical pattern of calcium oxalate crystal deposition seen in hyperoxaluria. He ...

Background Nephrocalcinosis (NC) refers to diffuse, fine, renal parenchymal calcification, as assessed by radiology or ultrasonography. In medullary NC, the calcification tends to occur in the area of the renal pyramids. It is typically associated with elevated urinary calcium, phosphate, and oxalate, or it can occur with alkaline urine. Any disorder that can lead to hypercalcemia or hypercalci...