Conventional Radiology in Crystal Arthritis

Publication date: September 2017
Source:Radiologic Clinics of North America, Volume 55, Issue 5
Author(s): Thibaut Jacques, Paul Michelin, Sammy Badr, Michelangelo Nasuto, Guillaume Lefebvre, Neal Larkman, Anne Cotten

Teaser

This article reviews the main radiographic features of crystal deposition diseases. Gout is linked to monosodium urate crystals. Classic radiographic features include subcutaneous tophi, large and well-circumscribed paraarticular bone erosions, and exuberant bone hyperostosis. Calcium pyrophosphate deposition (CPPD) can involve numerous structures, such as hyaline cartilages, fibrocartilages, or tendons. CPPD arthropathy involves joints usually spared by osteoarthritis. Basic calcium phosphate deposits are periarticular or intraarticular. Periarticular calcifications are amorphous, dense, and round or oval with well-limited borders, and most are asymptomatic. When resorbing, they become cloudy and less dense with an ill-defined shape and can migrate into adjacent structures.


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