Calcium oxalate stones are frequently found attached to Randall's plaque

Brian Matlaga, James C. Williams, Andrew P. Evan, James E. Lingeman

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The exact mechanisms of the crystallization processes that occur during the formation of calcium oxalate calculi are controversial. Over six decades ago, Alexander Randall reported on a series of cadaveric renal units in which he observed calcium salt deposits on the tips of the renal papilla. Randall hypothesized that these deposits, eponymously termed Randall's plaque, would be the ideal site for stone formation, and indeed in a number of specimens he noted small stones attached to the papillae. With the recent advent of digital endoscopic imaging and micro computerized tomography (CT) technology, it is now possible to inspect the renal papilla of living, human stone formers and to study the attached stone with greater scrutiny.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Number of pages7
StatePublished - 2007
Event1st Annual International Urolithiasis Research Symposium - Indianapolis, IN, United States
Duration: Nov 2 2006Nov 3 2006


Other1st Annual International Urolithiasis Research Symposium
CountryUnited States
CityIndianapolis, IN



  • Calculi
  • Kidney

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Matlaga, B., Williams, J. C., Evan, A. P., & Lingeman, J. E. (2007). Calcium oxalate stones are frequently found attached to Randall's plaque. In AIP Conference Proceedings (Vol. 900, pp. 35-41)