TY - CHAP M1 - Book, Section TI - Chapter 475. Urinary Tract Stone Diseases A1 - Langlois, Valerie A2 - Rudolph, Colin D. A2 - Rudolph, Abraham M. A2 - Lister, George E. A2 - First, Lewis R. A2 - Gershon, Anne A. PY - 2011 T2 - Rudolph's Pediatrics, 22e AB - Urolithiasis is the term used to describe the presence of a stone or a calculus anywhere in the urinary tract. Nephrolithiasis is the term generally used when calculi are found in the kidneys; it should not be confused with nephrocalcinosis, which is the deposition of calcium in the tubulointerstitial regions of the kidneys. The prevalence of urolithiasis varies widely, depending on geographic locations. Although uncommon in some countries, it remains an important childhood diagnosis because it is often associated with morbidity and high rates of recurrence. A thorough evaluation should be done to identify specific metabolic defects or factors predisposing to stone formation. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/18 UR - accesspediatrics.mhmedical.com/content.aspx?aid=7045926 ER -