Noureddine Mahiou
Malignant mesenchymal neoplasms affecting larynx are a rare tumors. Undifferentiated high-grade Pleomorphic Sarcoma (UPS), considered as malignant fibrous histiocytoma, is a high grade malignant neoplasm characterized by tumor cells with diffuse pleomorphism in the absence of a specific line of differentiation; we present a new case of undifferentiated high-grade pleomorphic sarcoma arising in larynx, and discuss pathological findings and surgical treatment of this rare tumor.
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