title: [Magnetic resonance imaging in juvenile idiopathic arthritis: peculiarities of imaging children].
abstract: The term juvenile idiopathic arthritis (JIA) encompasses a heterogeneous group of arthritides with no known cause that begin before the age of 16 years and persist for at least 6 weeks. In recent decades, imaging techniques have acquired a fundamental role in the diagnosis and follow-up of JIA, owing to the unification of the different criteria for classification, which has strengthened the research in this field, and to the development of disease-modifying antirheumatic drugs. In this article, we briefly explain what JIA is. Moreover, we describe the role and limitations of plain-film radiography, ultrasonography, and magnetic resonance imaging (MRI). Finally, we review the MRI protocol and findings, and we comment on the differential diagnosis.
authors: Servicio de Radiología, Hospital Sant Joan de Déu, Esplugues de Llobregrat, Barcelona, España. Electronic address: mnavallas@gmail.com.
authors: M
authors: M
authors: Navallas
authors: M
authors: M
authors: Rebollo Polo
authors: L
authors: L
authors: Riaza
authors: J
authors: J
authors: Muchart López
authors: T
authors: T
authors: Maristany
mesh_terms: D001171:Arthritis, Juvenile / Q000175:diagnosis*; D002648:Child; D003952:Diagnostic Imaging; D006801:Humans; D008279:Magnetic Resonance Imaging
keywords: Arthritis; Articulaciones; Artritis; Artritis idiopática juvenil; Imagen por resonancia magnética; Joints; Juvenile idiopathic arthritis; Magnetic resonance imaging; Pediatrics; Pediatría