Mesenchymal Chondrosarcoma of the Sinonasal Cavity: A Case Report and Brief Review of the Literature

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Mesenchymal chondrosarcoma is a rare, highly malignant cartilaginous forming tumor that is rarely encountered in clinical practice. They are unique in their ability to frequently arise in the soft tissues in addition to the common skeletal sites of other bone tumors. Histologically, mesenchymal chondrosarcomas are characterized by a mix of cartilage and undifferentiated stromal tissue. Radiographically, they demonstrate features similar to the more commonly encountered conventional chondrosarcoma, with the tumor location and patient age helping to suggest the correct diagnosis.

We present a case of mesenchymal chondrosarcoma presenting as chronic sinusitis, arising in the sinonasal cavity. Additionally, a discussion of the imaging features and a brief review of the literature surrounding this uncommon neoplasm are included.



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