Mesenchymal chondrosarcoma (MCS) is a rare translocation‐associated sarcoma, driven by a canonical HEY1::NCOA2 fusion. The tumors typically have a biphasic phenotype of primitive small blue round cells intermixed with hyaline… Click to show full abstract
Mesenchymal chondrosarcoma (MCS) is a rare translocation‐associated sarcoma, driven by a canonical HEY1::NCOA2 fusion. The tumors typically have a biphasic phenotype of primitive small blue round cells intermixed with hyaline cartilage. The head and neck (HN) region is a common site for MCS, accounting for 12–45% of all cases reported.
               
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