Very unusual “needle- and pencil-like” uric acid crystals in the urine unmasked by infrared spectroscopy investigation

S. Baroni, G. Garigali, A. Primiano, J. Gervasoni, G. B. Fogazzi

Research output: Contribution to journalLetter


In this paper we describe a case with very unusual “needle- and pencil-like” crystals, partly similar to those reported by other investigators, who considered them as due to uric acid. Quite importantly, infrared spectroscopy investigation which, to our knowledge, we have been the first to perform on this type of crystals, confirmed their nature as uric acid structures. This case demonstrates that the planet of urinary crystals still has several unknown facets and still deserves exploration.

Original languageEnglish
Pages (from-to)72-73
Number of pages2
JournalClinica Chimica Acta
Publication statusPublished - Apr 1 2018



  • Urinalysis
  • Urinary crystals
  • Urinary sediment
  • Urinary uric acid crystals

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry
  • Biochemistry, medical

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