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Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report

INTRODUCTION: Nonossifying fibroma is a common fibrous bone lesion in children that occurs in the metaphysis of the long bones of the lower extremities. The lesion rarely leads to aneurysmal bone cyst, which is characterized as a blood-filled space. CASE PRESENTATION: We present the case of a 13-yea...

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Autores principales: Sakamoto, Akio, Ishii, Takeaki, Oda, Yoshinao, Iwamoto, Yukihide
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3520689/
https://www.ncbi.nlm.nih.gov/pubmed/23194069
http://dx.doi.org/10.1186/1752-1947-6-407
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author Sakamoto, Akio
Ishii, Takeaki
Oda, Yoshinao
Iwamoto, Yukihide
author_facet Sakamoto, Akio
Ishii, Takeaki
Oda, Yoshinao
Iwamoto, Yukihide
author_sort Sakamoto, Akio
collection PubMed
description INTRODUCTION: Nonossifying fibroma is a common fibrous bone lesion in children that occurs in the metaphysis of the long bones of the lower extremities. The lesion rarely leads to aneurysmal bone cyst, which is characterized as a blood-filled space. CASE PRESENTATION: We present the case of a 13-year-old Japanese boy with a complaint of discomfort in the thigh and a small, well-defined, osteolytic lesion with cortical thinning located in the medullary space of the distal diaphysis of the femur. At 10-month follow-up, the size of the lesion had increased. Gadolinium-enhanced magnetic resonance imaging failed to detect any solid area. Curettage and bone graft were performed and confirmed a blood-filled cystic lesion. The pathological diagnosis of the cyst wall was that of nonossifying fibroma, suggesting aneurysmal bone cyst as a secondary change. An aneurysmal bone cyst is rarely found secondary to nonossifying fibroma, and the diaphyseal location is atypical for nonossifying fibroma, both of which made diagnosis challenging. CONCLUSION: The current case is a reminder to clinicians that, although rare, nonossifying fibroma can be associated with aneurysmal bone cyst, and both can occur in the diaphysis of long bones.
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spelling pubmed-35206892012-12-13 Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report Sakamoto, Akio Ishii, Takeaki Oda, Yoshinao Iwamoto, Yukihide J Med Case Rep Case Report INTRODUCTION: Nonossifying fibroma is a common fibrous bone lesion in children that occurs in the metaphysis of the long bones of the lower extremities. The lesion rarely leads to aneurysmal bone cyst, which is characterized as a blood-filled space. CASE PRESENTATION: We present the case of a 13-year-old Japanese boy with a complaint of discomfort in the thigh and a small, well-defined, osteolytic lesion with cortical thinning located in the medullary space of the distal diaphysis of the femur. At 10-month follow-up, the size of the lesion had increased. Gadolinium-enhanced magnetic resonance imaging failed to detect any solid area. Curettage and bone graft were performed and confirmed a blood-filled cystic lesion. The pathological diagnosis of the cyst wall was that of nonossifying fibroma, suggesting aneurysmal bone cyst as a secondary change. An aneurysmal bone cyst is rarely found secondary to nonossifying fibroma, and the diaphyseal location is atypical for nonossifying fibroma, both of which made diagnosis challenging. CONCLUSION: The current case is a reminder to clinicians that, although rare, nonossifying fibroma can be associated with aneurysmal bone cyst, and both can occur in the diaphysis of long bones. BioMed Central 2012-11-29 /pmc/articles/PMC3520689/ /pubmed/23194069 http://dx.doi.org/10.1186/1752-1947-6-407 Text en Copyright ©2012 Sakamoto et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Case Report
Sakamoto, Akio
Ishii, Takeaki
Oda, Yoshinao
Iwamoto, Yukihide
Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
title Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
title_full Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
title_fullStr Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
title_full_unstemmed Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
title_short Nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
title_sort nonossifying fibroma presenting as an aneurysmal bone cyst: a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3520689/
https://www.ncbi.nlm.nih.gov/pubmed/23194069
http://dx.doi.org/10.1186/1752-1947-6-407
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