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LETTER
Year : 2017  |  Volume : 63  |  Issue : 4  |  Page : 273

Unusual presentation of chondroblastoma mimicking Trevor's disease


1 Department of Radiodiagnosis and Interventional Radiology, Kerala Institute of Medical Sciences and Research Centre, Trivandrum, Kerala, India
2 Department of Pathology, Medical College Hospital, Trivandrum, Kerala, India

Date of Web Publication11-Oct-2017

Correspondence Address:
A V Nair
Department of Radiodiagnosis and Interventional Radiology, Kerala Institute of Medical Sciences and Research Centre, Trivandrum, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jpgm.JPGM_235_17

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How to cite this article:
Nair A V, Anirudh S. Unusual presentation of chondroblastoma mimicking Trevor's disease. J Postgrad Med 2017;63:273

How to cite this URL:
Nair A V, Anirudh S. Unusual presentation of chondroblastoma mimicking Trevor's disease. J Postgrad Med [serial online] 2017 [cited 2020 Apr 8];63:273. Available from: http://www.jpgmonline.com/text.asp?2017/63/4/273/213898




We appreciate Karkhur Y et al.[1] for publishing a case report of suspected Trevor's disease that eventually turned out to be chondroblastoma.

Dysplasia epiphysealis hemimelica (DEH), also known as Trevor's disease, is a rare hereditary disease characterized by osteochondroma arising from the epiphyses. DEH was first described in 1926 by Mouchet and Belot as “Tarsomegaly.” Later in 1950, it was Trevor who reported his case series using the term “tarsoepiphyseal aclasis.”[2]

Azouz et al.[3] classified DEH into three groups; (a) classic form with characteristic hemimelic distribution involving more than one bone or epiphysis within a single lower extremity; (b) localized form with single bone affection unilateral or bilateral; (c) generalized form, involving the whole limb from pelvis to foot.

Although the authors did not do an magnetic resonance imaging (MRI) knee joint in the case, MRI would be useful when evaluation of underlying secondary involvement of ligaments, cartilages, and menisci is necessary.[4] Osteochondral overgrowth will have the similar magnetic resonance signal intensity to epiphyseal cartilage and bone.

Chondroblastoma occurs in young (<2 decades) skeletally immature patients with male predominance. Radiologically, chondroblastomas are lucent lesions with thin sclerotic rim commonly involving the epiphysis of long bones. Histologically, ovoid cells with grooved nucleus in a chondroid matrix with or without characteristic 'chicken wire calcification' is pathognomonic of chondroblastoma. What makes us cautious about chondroblastoma is the possibility of small proportion of cases that can have malignant transformation with local, vascular invasion and distant metastasis.

In this case, the authors had a case of radiologically suspected DEH, which histologically turned out to be chondroblastoma.[1] Remote possibility of aggressive nature should prompt us to keep chondroblastoma in the list of rare differentials while encountering atypical epiphyseal lesions that mimic DEH.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
 :: References Top

1.
Karkhur Y, Tiwari A, Verma T, Maini L. Unusual presentation of chondroblastoma mimicking Trevor's disease. J Postgrad Med 2017;63:197-9.  Back to cited text no. 1
[PUBMED]  [Full text]  
2.
Trevor D. Tarso-epiphysial aclasis; a congenital error of epiphyseal development. J Bone Joint Surg Br 1950;32-B:204-13.  Back to cited text no. 2
    
3.
Azouz EM, Slomic AM, Marton D, Rigault P, Finidori G. The variable manifestations of dysplasia epiphysealis hemimelica. Pediatr Radiol 1985;15:44-9.  Back to cited text no. 3
    
4.
Peduto AJ, Frawley KJ, Bellemore MC, Kuo RS, Foster SL, Onikul E. MR imaging of dysplasia epiphysealis hemimelica: Bony and soft-tissue abnormalities. AJR Am J Roentgenol 1999;172:819-23.  Back to cited text no. 4
    




 

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Online since 12th February '04
2004 - Journal of Postgraduate Medicine
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