Marked renal damage in a child with hydronephrosis infected by Trichosporon asahii

We describe a case of urinary infection caused by Trichosporon asahii, which drastically aggravated renal function in a left hydronephrotic kidney. Previous implantation of a nephrostomy tube and a ureteral J-stent and administration of broad-spectrum antibiotics seemed to have predisposed the non-granulocytopenic child to the urinary fungal infection.