LAUSR

A 24-month-old boy was referred for a glomerular hematuria previously labeled as a chronic glomerulonephritis. His clinical story begins at the age of 18 months when the urine test performed due to the presence of dysuria showed the presence of microhematuria and light proteinuria. Farley’s test results highlighted glomerular hematuria. Blood tests performed in the same occasion were all normal as well as kidneys and urinary tract ultrasound. Family history was remarkable due to the mother’s diagnosis of a mesangial proliferative glomerulonephritis without hearing loss or eye anomalies at 3 years of age, currently treated with losartan. Maternal grandfather was reported to have suffered from a non-defined form of chronic renal failure. Blood laboratory test results were all in normal range, and no anomalies were detected at the renal ultrasound. Both the eye and the ENT examination gave normal results. The result of the genetic test for Alport syndrome (COL4A3, COL4A4, COL4A5) was negative.