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The magnetic resonance appearance of surfers' knots: a case report

Athletes are at increased risk of developing soft-tissue lesions of the lower limbs. Although the majority of these will be benign, the differential diagnosis is broad and increasingly, doctors are turning to magnetic resonance imaging (MRI) as a first-line investigation when presented with these so...

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Autores principales: McManus, Luke J., Thomson, Andrew, Whan, Andrew
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4996906/
https://www.ncbi.nlm.nih.gov/pubmed/27594950
http://dx.doi.org/10.1016/j.radcr.2016.05.002
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author McManus, Luke J.
Thomson, Andrew
Whan, Andrew
author_facet McManus, Luke J.
Thomson, Andrew
Whan, Andrew
author_sort McManus, Luke J.
collection PubMed
description Athletes are at increased risk of developing soft-tissue lesions of the lower limbs. Although the majority of these will be benign, the differential diagnosis is broad and increasingly, doctors are turning to magnetic resonance imaging (MRI) as a first-line investigation when presented with these sorts of lesions, both to narrow the differential diagnosis and exclude malignancy. We report the case of a 28-year-old Caucasian man who presented with 2 soft-tissue lesions of the right foot. History and examination of the nodules fitted with a diagnosis of surfers' knots, an unusual form of acquired, benign, connective tissue nodule that may appear over the tibial tuberosities, dorsum of the feet, and occasionally on the chest of surfers in association with repetitive microtrauma during surfing. MRI findings were consistent with this diagnosis with both lesions exhibiting T1 hypointensity and speckled T2 hypointensity with no significant blooming artifact on gradient echo imaging. When imaged with gadolinium, they demonstrated only mild contrast enhancement. MRI is a valuable tool when investigating athletes with soft-tissue lesions over the lower limbs where the possibility of malignancy must be addressed. In selected cases, MRI may be sufficient to permit a conservative approach to the management of these patients.
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spelling pubmed-49969062016-09-02 The magnetic resonance appearance of surfers' knots: a case report McManus, Luke J. Thomson, Andrew Whan, Andrew Radiol Case Rep Case Report Athletes are at increased risk of developing soft-tissue lesions of the lower limbs. Although the majority of these will be benign, the differential diagnosis is broad and increasingly, doctors are turning to magnetic resonance imaging (MRI) as a first-line investigation when presented with these sorts of lesions, both to narrow the differential diagnosis and exclude malignancy. We report the case of a 28-year-old Caucasian man who presented with 2 soft-tissue lesions of the right foot. History and examination of the nodules fitted with a diagnosis of surfers' knots, an unusual form of acquired, benign, connective tissue nodule that may appear over the tibial tuberosities, dorsum of the feet, and occasionally on the chest of surfers in association with repetitive microtrauma during surfing. MRI findings were consistent with this diagnosis with both lesions exhibiting T1 hypointensity and speckled T2 hypointensity with no significant blooming artifact on gradient echo imaging. When imaged with gadolinium, they demonstrated only mild contrast enhancement. MRI is a valuable tool when investigating athletes with soft-tissue lesions over the lower limbs where the possibility of malignancy must be addressed. In selected cases, MRI may be sufficient to permit a conservative approach to the management of these patients. Elsevier 2016-06-04 /pmc/articles/PMC4996906/ /pubmed/27594950 http://dx.doi.org/10.1016/j.radcr.2016.05.002 Text en © 2016 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
McManus, Luke J.
Thomson, Andrew
Whan, Andrew
The magnetic resonance appearance of surfers' knots: a case report
title The magnetic resonance appearance of surfers' knots: a case report
title_full The magnetic resonance appearance of surfers' knots: a case report
title_fullStr The magnetic resonance appearance of surfers' knots: a case report
title_full_unstemmed The magnetic resonance appearance of surfers' knots: a case report
title_short The magnetic resonance appearance of surfers' knots: a case report
title_sort magnetic resonance appearance of surfers' knots: a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4996906/
https://www.ncbi.nlm.nih.gov/pubmed/27594950
http://dx.doi.org/10.1016/j.radcr.2016.05.002
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