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Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report

INTRODUCTION: Chondroblastoma is a rare and benign bone neoplasm that accounts for <1% of all bone tumors. Chondroblastomas of the hand are extremely rare, while enchondromas are the most common bone tumor of the hand. CASE REPORT: A 14-year-old girl had complaints of pain and swelling over the b...

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Autores principales: Ranjan, Rajni, Kumar, Rakesh, Chaudhary, Dushyant, Jeyaraman, Madhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Indian Orthopaedic Research Group 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10152951/
https://www.ncbi.nlm.nih.gov/pubmed/37143550
http://dx.doi.org/10.13107/jocr.2023.v13.i01.3500
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author Ranjan, Rajni
Kumar, Rakesh
Chaudhary, Dushyant
Jeyaraman, Madhan
author_facet Ranjan, Rajni
Kumar, Rakesh
Chaudhary, Dushyant
Jeyaraman, Madhan
author_sort Ranjan, Rajni
collection PubMed
description INTRODUCTION: Chondroblastoma is a rare and benign bone neoplasm that accounts for <1% of all bone tumors. Chondroblastomas of the hand are extremely rare, while enchondromas are the most common bone tumor of the hand. CASE REPORT: A 14-year-old girl had complaints of pain and swelling over the base of her thumb for 1 year. On examination, a solitary and hard swelling was palpable over the base of the thumb, with terminal restriction of first metacarpophalangeal joint movements. Radiographs revealed an expansile and lytic lesion in the epiphyseal region of the first metacarpal. Chondroid calcifications were absent. Magnetic resonance imaging showed a lesion with the hypointense signal on T1 and T2 sequences. These suggested a diagnosis of enchondroma. Excisional biopsy of the lesion, bone grafting, and Kirschner wire fixation was performed. Histological examination showed the lesion to be a chondroblastoma. No recurrence was noted at the 1-year follow-up. CONCLUSION: Chondroblastomas can very rarely occur in the bones of the hand. In such cases, differentiating them from enchondromas and ABCs is a challenge. Characteristic chondroid calcifications may be absent in nearly half of such cases. Curettage with bone grafting provides a good outcome with no recurrence.
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spelling pubmed-101529512023-05-03 Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report Ranjan, Rajni Kumar, Rakesh Chaudhary, Dushyant Jeyaraman, Madhan J Orthop Case Rep Case Report INTRODUCTION: Chondroblastoma is a rare and benign bone neoplasm that accounts for <1% of all bone tumors. Chondroblastomas of the hand are extremely rare, while enchondromas are the most common bone tumor of the hand. CASE REPORT: A 14-year-old girl had complaints of pain and swelling over the base of her thumb for 1 year. On examination, a solitary and hard swelling was palpable over the base of the thumb, with terminal restriction of first metacarpophalangeal joint movements. Radiographs revealed an expansile and lytic lesion in the epiphyseal region of the first metacarpal. Chondroid calcifications were absent. Magnetic resonance imaging showed a lesion with the hypointense signal on T1 and T2 sequences. These suggested a diagnosis of enchondroma. Excisional biopsy of the lesion, bone grafting, and Kirschner wire fixation was performed. Histological examination showed the lesion to be a chondroblastoma. No recurrence was noted at the 1-year follow-up. CONCLUSION: Chondroblastomas can very rarely occur in the bones of the hand. In such cases, differentiating them from enchondromas and ABCs is a challenge. Characteristic chondroid calcifications may be absent in nearly half of such cases. Curettage with bone grafting provides a good outcome with no recurrence. Indian Orthopaedic Research Group 2023-01 2023-01 /pmc/articles/PMC10152951/ /pubmed/37143550 http://dx.doi.org/10.13107/jocr.2023.v13.i01.3500 Text en Copyright: © Indian Orthopaedic Research Group https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Unported, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms
spellingShingle Case Report
Ranjan, Rajni
Kumar, Rakesh
Chaudhary, Dushyant
Jeyaraman, Madhan
Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report
title Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report
title_full Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report
title_fullStr Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report
title_full_unstemmed Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report
title_short Chondroblastoma of Metacarpal Masquerading as Enchondroma – A Case Report
title_sort chondroblastoma of metacarpal masquerading as enchondroma – a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10152951/
https://www.ncbi.nlm.nih.gov/pubmed/37143550
http://dx.doi.org/10.13107/jocr.2023.v13.i01.3500
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