Derk F M Avenarius1,2, Lil-Sofie Ording Müller3, Karen Rosendahl4,5. 1. 1 Faculty of Health Sciences, University of Tromsø, Breivika 9037, Tromsø, Norway. 2. 2 Department of Radiology, University Hospital of North Norway, Tromsø, Norway. 3. 3 Department for Radiology and Intervention, Oslo University Hospital, Oslo, Norway. 4. 4 Department of Radiology, Haukeland University Hospital, Bergen, Norway. 5. 5 Department of Clinical Medicine, University of Bergen, Bergen, Norway.
Abstract
OBJECTIVE: The presence of findings at wrist MRI that may mimic disease is a diagnostic problem. The purpose of this study is to examine the occurrence of bone marrow changes resembling edema, joint fluid, and ganglion cysts over time, in a cohort of healthy children. MATERIALS AND METHODS: Seventy-four of 89 healthy children included in a study of normal MRI findings of the wrists were reexamined after a period of 4 years, using the same 1.5-T MRI technique-namely, a coronal T1-weighted and a T2-weighted fat-saturated sequence. A history of handedness, diseases, and sports activity was noted. RESULTS: Bone marrow edema or edemalike changes were seen in 29 of 74 (39.2%) wrists in 2013 as compared with 35 of 72 (48.6%) wrists in 2009 (p = 0.153), all in different locations. Changes were found in central parts of the bone, on both sides of a joint, or near bony depressions. Fifty percent of all subjects had at least one fluid pocket greater than or equal to 2 mm. The location was unchanged in 47% of the joints. In 24% of the individuals, at least one ganglion cyst was seen. Six ganglion cysts present on the first scan were not seen on the follow-up scan, and 11 new ganglion cysts had appeared. CONCLUSION: Awareness of normal MRI appearances of the growing skeleton is crucial when interpreting MRI of children, and such findings must not be interpreted as pathologic abnormalities.
OBJECTIVE: The presence of findings at wrist MRI that may mimic disease is a diagnostic problem. The purpose of this study is to examine the occurrence of bone marrow changes resembling edema, joint fluid, and ganglion cysts over time, in a cohort of healthy children. MATERIALS AND METHODS: Seventy-four of 89 healthy children included in a study of normal MRI findings of the wrists were reexamined after a period of 4 years, using the same 1.5-T MRI technique-namely, a coronal T1-weighted and a T2-weighted fat-saturated sequence. A history of handedness, diseases, and sports activity was noted. RESULTS: Bone marrow edema or edemalike changes were seen in 29 of 74 (39.2%) wrists in 2013 as compared with 35 of 72 (48.6%) wrists in 2009 (p = 0.153), all in different locations. Changes were found in central parts of the bone, on both sides of a joint, or near bony depressions. Fifty percent of all subjects had at least one fluid pocket greater than or equal to 2 mm. The location was unchanged in 47% of the joints. In 24% of the individuals, at least one ganglion cyst was seen. Six ganglion cysts present on the first scan were not seen on the follow-up scan, and 11 new ganglion cysts had appeared. CONCLUSION: Awareness of normal MRI appearances of the growing skeleton is crucial when interpreting MRI of children, and such findings must not be interpreted as pathologic abnormalities.
Authors: Derk Frederik Matthaus Avenarius; Charlotte Nusman; Clara Malattia; Laura Tanturri de Horatio; Karen Rosendahl; Mario Maas; Lil-Sofie Ording Müller Journal: Pediatr Radiol Date: 2018-05-08
Authors: Laura S Kox; Rik B J Kraan; Kees F van Dijke; Robert Hemke; Sjoerd Jens; Milko C de Jonge; Edwin H G Oei; Frank F Smithuis; Maaike P Terra; Mario Maas Journal: BMJ Open Sport Exerc Med Date: 2018-04-09
Authors: Floris Verkuil; E Charlotte van Gulik; Charlotte M Nusman; Anouk M Barendregt; Amara Nassar-Sheikh Rashid; Dieneke Schonenberg-Meinema; Koert M Dolman; Mario Maas; Taco W Kuijpers; J Merlijn van den Berg; Robert Hemke Journal: Pediatr Radiol Date: 2020-07-13
Authors: Charlotte M Nusman; Laura Tanturri de Horatio; Robert Hemke; E Charlotte van Gulik; Lil-Sofie Ording Müller; Clara Malattia; Derk Avenarius; Paolo Toma; Johannes Roth; Nikolay Tzaribachev; Silvia Magni-Manzoni; Mario Maas; Andrea S Doria; Karen Rosendahl Journal: Pediatr Radiol Date: 2018-01-13