A case of FN1-fused calcified chondroid mesenchymal neoplasm of the hand with novel FGFR3 partner gene Journal Article


Authors: Georgantzoglou, N.; Shen, G.; Jour, G.; Linos, K.
Article Title: A case of FN1-fused calcified chondroid mesenchymal neoplasm of the hand with novel FGFR3 partner gene
Abstract: Calcified chondroid neoplasms with FN1::FGFR1 or FGFR2 fusions constitute a recently described category of mesenchymal neoplasms mostly encountered in the extremities and temporomandibular joint. Herein, we report a case of FNI1-fused calcified chondroid neoplasm of the hand with a novel FGFR3 fusion partner. The tumor exhibited a multilobulated growth pattern composed of epithelioid cells embedded in abundant stroma with myxoid, chondroid, and fibrous areas and scattered osteoclast-like giant cells. RNA sequencing revealed an in-frame fusion between Exon 31 of FN1 and Exon 3 of FGFR3, which was subsequently confirmed by reverse transcription-polymerase chain reaction. Our findings expand on the spectrum of potential fusion partners in FN1-fused calcified chondroid neoplasms. © 2022 Wiley Periodicals LLC.
Keywords: immunohistochemistry; clinical article; human tissue; aged; human cell; exon; genetics; case report; nuclear magnetic resonance imaging; follow up; tumor localization; reverse transcription polymerase chain reaction; fibroblast growth factor receptor 3; needle biopsy; gene fusion; osteoclast; physical examination; tumor growth; soft tissue tumor; receptor, fibroblast growth factor, type 3; hand surgery; hand tumor; humans; human; female; article; rna sequencing; fgfr; fgfr3 protein, human; hand injury; hand radiography; giant cell tumor of tendon sheath; soft tissue swelling; epithelioid histiocyte; neoplasms, connective and soft tissue; calcified; chondroid; fni1; chondroid mesenchymal neoplasm of the hand; fn1 fgfr3 gene; hand swelling
Journal Title: Genes Chromosomes and Cancer
Volume: 62
Issue: 4
ISSN: 1045-2257
Publisher: Wiley Periodicals, Inc  
Date Published: 2023-04-01
Start Page: 237
End Page: 241
Language: English
DOI: 10.1002/gcc.23115
PUBMED: 36504176
PROVIDER: scopus
DOI/URL:
Notes: Article -- Export Date: 1 March 2023 -- Source: Scopus
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  1. Konstantinos Linos
    53 Linos