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Osteochondroma of the First Phalanx in Tbourida Horses
This study aimed at describing anatomo-histopathological and imaging features, using computed tomography and magnetic resonance imaging on six ex vivo forelimbs of Tbourida horses, that presented a particular bone exostosis on the dorsal and proximal part of the first phalanx, diagnosed by X-ray. Gr...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6331405/ https://www.ncbi.nlm.nih.gov/pubmed/30671439 http://dx.doi.org/10.3389/fvets.2018.00328 |
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author | Seghrouchni, Mohammed Bollo, Enrico Piro, Mohamed Alyakine, Hassan Bouayad, Hassan Chakir, Jamal Azrib, Rahma Allali, Khalid El |
author_facet | Seghrouchni, Mohammed Bollo, Enrico Piro, Mohamed Alyakine, Hassan Bouayad, Hassan Chakir, Jamal Azrib, Rahma Allali, Khalid El |
author_sort | Seghrouchni, Mohammed |
collection | PubMed |
description | This study aimed at describing anatomo-histopathological and imaging features, using computed tomography and magnetic resonance imaging on six ex vivo forelimbs of Tbourida horses, that presented a particular bone exostosis on the dorsal and proximal part of the first phalanx, diagnosed by X-ray. Gross anatomy of the bone exostosis revealed an irregular surface with poly-lobulated tissue masses showing a cauliflower shape. The diameter/depth varied from 0.5 to 5.1 cm with a mean of 3.9 ± 0.9 cm. The capsule of the metacarpophalangeal joint was hypertrophic and showed many invaginations in the inner part, in contact with the bone exostosis. Computed tomography revealed cortical and medullary continuity of the bone exostosis, with the underlying bone, and remodeling of the cortical surface of the dorsal and proximal part of the first phalanx. Magnetic resonance imaging showed an increased signal intensity of the bone exostosis on the T1- and T2(*)-weighted gradient fast echo. Histological examination of the bone exostosis revealed a cap of hyaline cartilage, including large foci of endochondral ossification with a base of cancellous bone surrounding marrow spaces, which confirmed the diagnosis of osteochondroma. The capsule of the metacarpophalangeal joint showed a large amount of recently formed connective tissue fibers in its inner part, interspersed with mature connective tissue. The hyperextension of the metacarpophalangeal joint during a Tbourida show, which occurs on a hard ground surface, and the use of hobbles in horse stabling are most likely responsible for the outgrowth of an osteochondroma of different shapes and sizes, and fracture complications in some cases. |
format | Online Article Text |
id | pubmed-6331405 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-63314052019-01-22 Osteochondroma of the First Phalanx in Tbourida Horses Seghrouchni, Mohammed Bollo, Enrico Piro, Mohamed Alyakine, Hassan Bouayad, Hassan Chakir, Jamal Azrib, Rahma Allali, Khalid El Front Vet Sci Veterinary Science This study aimed at describing anatomo-histopathological and imaging features, using computed tomography and magnetic resonance imaging on six ex vivo forelimbs of Tbourida horses, that presented a particular bone exostosis on the dorsal and proximal part of the first phalanx, diagnosed by X-ray. Gross anatomy of the bone exostosis revealed an irregular surface with poly-lobulated tissue masses showing a cauliflower shape. The diameter/depth varied from 0.5 to 5.1 cm with a mean of 3.9 ± 0.9 cm. The capsule of the metacarpophalangeal joint was hypertrophic and showed many invaginations in the inner part, in contact with the bone exostosis. Computed tomography revealed cortical and medullary continuity of the bone exostosis, with the underlying bone, and remodeling of the cortical surface of the dorsal and proximal part of the first phalanx. Magnetic resonance imaging showed an increased signal intensity of the bone exostosis on the T1- and T2(*)-weighted gradient fast echo. Histological examination of the bone exostosis revealed a cap of hyaline cartilage, including large foci of endochondral ossification with a base of cancellous bone surrounding marrow spaces, which confirmed the diagnosis of osteochondroma. The capsule of the metacarpophalangeal joint showed a large amount of recently formed connective tissue fibers in its inner part, interspersed with mature connective tissue. The hyperextension of the metacarpophalangeal joint during a Tbourida show, which occurs on a hard ground surface, and the use of hobbles in horse stabling are most likely responsible for the outgrowth of an osteochondroma of different shapes and sizes, and fracture complications in some cases. Frontiers Media S.A. 2019-01-08 /pmc/articles/PMC6331405/ /pubmed/30671439 http://dx.doi.org/10.3389/fvets.2018.00328 Text en Copyright © 2019 Seghrouchni, Bollo, Piro, Alyakine, Bouayad, Chakir, Azrib and El Allali. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Veterinary Science Seghrouchni, Mohammed Bollo, Enrico Piro, Mohamed Alyakine, Hassan Bouayad, Hassan Chakir, Jamal Azrib, Rahma Allali, Khalid El Osteochondroma of the First Phalanx in Tbourida Horses |
title | Osteochondroma of the First Phalanx in Tbourida Horses |
title_full | Osteochondroma of the First Phalanx in Tbourida Horses |
title_fullStr | Osteochondroma of the First Phalanx in Tbourida Horses |
title_full_unstemmed | Osteochondroma of the First Phalanx in Tbourida Horses |
title_short | Osteochondroma of the First Phalanx in Tbourida Horses |
title_sort | osteochondroma of the first phalanx in tbourida horses |
topic | Veterinary Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6331405/ https://www.ncbi.nlm.nih.gov/pubmed/30671439 http://dx.doi.org/10.3389/fvets.2018.00328 |
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