DOI: https://doi.org/10.36347/sjmcr.2026.v14i05.086

Pages: 1223-1226

Chondrosarcoma involving the nasal septum is an exceptionally uncommon malignant tumor, with only a limited number of cases described in the literature. Sinonasal localization remains particularly rare among head and neck chondrosarcomas. We report the case of a 13‑year‑old patient presenting with progressive unilateral nasal obstruction associated with recurrent epistaxis and swelling of the nasal root. Computed tomography and magnetic resonance imaging demonstrated an aggressive fronto‑ethmoido‑nasal mass with skull base and orbital extension. Histopathological and immunohistochemical analyses confirmed the diagnosis of chondrosarcoma. Through this observation, we highlight the major contribution of CT and MRI in lesion characterization, evaluation of locoregional extension, and therapeutic planning.