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SP0037 How to assess us elementary lesions in cppd
  1. G Filippou
  1. University of Siena, Siena, Italy

Abstract

Ultrasonography has been increasingly used the last years for the identification of calcium pyrophosphate dihydrate crystal deposition (CPPD) in joints and on 2011 has been considered by the EULAR task force on CPPD as a promising tool for the diagnosis of the disease. However, it is common experience between sonographers that in daily clinical practice CPP identification by US is rather challenging as crystal deposits are not always numerous and diffuse. Furthermore, other conditions can mimic CPP deposition leading to a wrong diagnosis. The recently created OMERACT US for CPPD subtask force has created for the first time a set of criteria for identification of CPP deposition and assessed their reliability trying to address some of the issues that impede a wider use of US for CPPD diagnosis. During this section will be exposed the main US features of CPP deposition according to the new criteria as well as the principal pitfals that could mislead diagnosis. The scanning techique and some tips and tricks that could help sonographers to identify correctly CPP deposition will also be explained.

Disclosure of Interest None declared

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