Learning Objectives: -To recognize characteristic MRI features of chronic recurrent multifocal osteomyelitis (CRMO) that distinguish it from infectious osteomyelitis and malignancy -To understand common imaging mimics including focal periphyseal edema zones, developmental variants, and physiologic bone marrow changes -To appreciate the clinical-imaging discordance in CRMO and the role of whole-body MRI in detecting subclinical disease Background: CRMO is a rare autoinflammatory bone disorder in children that poses diagnostic challenges due to overlapping features with infection, malignancy, and benign conditions. Early recognition of characteristic imaging patterns is crucial to avoid unnecessary biopsies, inappropriate antibiotic therapy, and diagnostic delays that may lead to skeletal complications. Read More

Meeting name: IPR 2026 Congress , 2026

Authors: Galvis Ingrid, Kvist Ola, Perdomo-luna Camilo, Jaramillo Diego

Keywords: Paediatric Radiology, Musculoskeletal, Magnetic Resonance Imaging MRI

Diffusion tensor imaging (DTI) is a technique in which diffusion of water molecules is restricted by cellular membranes. In the physis and adjacent metaphysis, the physeal metaphyseal complex (PMC), the columns of cartilage and newly formed bone restrict the diffusion of water to primarily the longitudinal direction. DTI indirectly measures physeal activity by revealing tissue microarchitecture of the PMC and by measuring the Brownian motion of water along the columns of bone and cartilage, which can be imaged and quantified as tractography. Having conducted DTI-MRI on over 900 knees, our research group has established that DTI can distinguish between a normal and a dysfunctional physis. A physeal bar or partial physeal arrest is the consequence of injury to an open physis, resulting in a perpendicular bony bridge through the physis which can lead to limb shortening or angular deformity. This poster presents our initial experience in performing DTI on the growth plate in 7 patients (5 females, 2 males) with MR-confirmed physeal bars to characterize tractography patterns associated with bony bridges and compare the tracotgraphy and diffusion metrics of the injured versus the healthy contralateral physis. Read More

Meeting name: SPR 2024 Annual Meeting & Postgraduate Course , 2024

Authors: Santos Laura, Kammen Bamidele, Sabharwal Sanjeev, Kvist Ola, Hitt Dave, Jambawalikar Sachin, Jaramillo Diego

Keywords: diffusion tensor imaging, physeal bar, physeal injury