MRI high-signal intensity in the menisci of asymptomatic children

Takeda, Yoshitsugu; Ikata, Takaaki; Yoshida, Shigehito; Takai, Hiroaki; Kashiwaguchi, Shinji

doi:10.1302/0301-620x.80b3.8013

Cited by 52 publications

(13 citation statements)

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“…Our observations concur with those of Hauger et al ( 24 ), where another potential cause of linear intermediate signal intensity in the meniscus was the presence of radially-oriented collagen tie fibers. However, abnormal high signal intensity in a linear distribution in the central layer of the meniscus can be caused by intrasubstance meniscal tears, increased vascularity ( 29 ), and meniscal degeneration.…”

Section: Discussionmentioning

confidence: 99%

Correlation of Histological Examination of Meniscus with MR Images: Focused on High Signal Intensity of the Meniscus Not Caused by Definite Meniscal Tear and Impact on MR Diagnosis of Tears

Kim²,

Kim

et al. 2013

Korean J Radiol

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ObjectiveTo document the causes of high signal intensity of the meniscus which is not caused by definite meniscal tears on MR imaging, through correlation with histological examination.Materials and MethodsFor the correlation between the MR image and histology, we obtained prospectively 31 meniscal specimens from 21 patients. Proton density-weighted turbo spin-echo MR images were used. Minimal tear, thinning of the lamellar layer, degeneration of the central layer, and radial tie fibers were detected upon histological examination, and were correlated with the corresponding MR images.ResultsMinimal tear of the lamellar layer was seen in 60 zones out of 100 slides. On MR images, 29 (48.3%) of these 60 zones had high signal intensity. Thinning of the lamellar layer was seen in 24 zones, with 7 (29.2%) having high signal intensity. 57 central zones showed degenerative change in the central layer and high signal intensity on all corresponding MR images. Radial tie fibers in the central layer appeared as high signal intensity areas.ConclusionMinimal tear and thinning of the lamellar layer, degeneration and radial tie fibers of the central layer of the meniscus cause high signal intensity on MR images.

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Section: Discussionmentioning

confidence: 99%

Correlation of Histological Examination of Meniscus with MR Images: Focused on High Signal Intensity of the Meniscus Not Caused by Definite Meniscal Tear and Impact on MR Diagnosis of Tears

Kim²,

Kim

et al. 2013

Korean J Radiol

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“…Also the change in MRI appearance of the meniscus seems to be a gradual process with the adolescent meniscus taking on more adult characteristics[5]. There is probably no specific age under which these criteria become unreliable.…”

Section: Discussionmentioning

confidence: 99%

“…High signal within the meniscus has been demonstrated in 80% of asymptomatic menisci in 10 year olds, decreasing to 35% in 15 year olds[5]. One study of 51 children with suspected meniscal pathology found a sensitivity and specificity of 50% and 78% respectively for lateral meniscal tears in the under 15 age group.…”

Section: Introductionmentioning

confidence: 99%

A deceptive MRI appearance of the medial meniscus in a 14 year old boy: a case report

2009

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BackgroundA 14 year old boy with a history and clinical examination suggestive of a medial meniscal tear is presented.Case presentationThe MRI findings suggested a horizontal cleavage tear so arthroscopy was carried out. No intra articular pathology was found at the time of surgery.ConclusionThe role of MRI in investigation of meniscal injuries in children is discussed and the limitations highlighted.

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“…Underlying degenerative changes, such as intrasubstance or myxoid degeneration in older patients and residual vascularity within the periphery of the meniscus in younger patients, can result in increased signal within the meniscus [10,11]. In the setting of trauma, increased signal within the meniscus can be secondary to meniscal contusion.…”

Section: Meniscimentioning

confidence: 99%

MRI of the Knee: What Do We Miss?

Simpfendorfer

Polster

2014

Curr Radiol Rep

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Magnetic resonance (MR) imaging is a commonly used tool when evaluating patients with acute knee injury or chronic knee pain. Although it has shown excellent accuracy in diagnosing knee pathology, there remain many potential pitfalls and missed lesions. These can be secondary to inherent technical limitations or artifacts related to MR. Also subtle pathology can be overlooked, and anatomic structures and associated variants can be misinterpreted as tears. In this article, we will review some of the more common misses or pitfalls that occur in the setting of sport-related injuries.

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MRI high-signal intensity in the menisci of asymptomatic children

Cited by 52 publications

References 0 publications

Correlation of Histological Examination of Meniscus with MR Images: Focused on High Signal Intensity of the Meniscus Not Caused by Definite Meniscal Tear and Impact on MR Diagnosis of Tears

Correlation of Histological Examination of Meniscus with MR Images: Focused on High Signal Intensity of the Meniscus Not Caused by Definite Meniscal Tear and Impact on MR Diagnosis of Tears

A deceptive MRI appearance of the medial meniscus in a 14 year old boy: a case report

MRI of the Knee: What Do We Miss?

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