A letter to the editor is presented in response to the article "Acute Renal Failure Due to Obstructive Uric Acid Stones Associated with Acute Gastroenteritis” by T. Fujita, T. Shimooka, Y. Teraoka, Y. Sugita, H. Kaito, K. Iijima, M. Matsuo, K. Nozu, and R. Tanaka in a 2009 issue.