Pediatr Radiol (2017) 47:1214–1215 DOI 10.1007/s00247-017-3916-8 LETTER TO THE EDITOR 1 2 3 4 Andrew S. Phelps & Jeanne S. Chow & Susan J. Back & Hiep T. Nguyen & 5 3 Jeffrey L. Koning & Kassa Darge Received: 21 April 2017 /Accepted: 29 May 2017 /Published online: 2 August 2017 Springer-Verlag Berlin Heidelberg 2017 Dear Editors, may refer to the renal pelvis or the connections between the We are writing to you to draw attention to two differing illus- calyces and pelvis. The terms “minor calyces” and “major trations depicting the new urinary tract dilation (UTD) classi- calyces” are also problematic because “minor” and “major” fication system. Both of the illustrations have been pub- may be confused with pathological states (e.g., consider a lished in Pediatric Radiology: the first in January 2017 report that says “minordilationofthe major calyx”). , and the second in this special issue . The illus- Therefore the UTD classification uses the following terms trationinthisissuewasvettedbythecreators of the (in order of antegrade urinary flow): peripheral calyx (sur- UTD classification system, and we feel it is important rounds the medullary pyramid), central calyx (connects pe- for readers to appreciate the differences. ripheral calyx to pelvis) and renal
Pediatric Radiology – Springer Journals
Published: Aug 4, 2017
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