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Sinonasal Chondrosarcoma, an Unusual Location.

Authors :: Abouhanine O
Merzem A
Ndayishimiye V
Amriss O
Belgadir H
Moussali N
El Benna N
Source :: European journal of case reports in internal medicine [Eur J Case Rep Intern Med] 2020 Nov 11; Vol. 7 (12), pp. 001933. Date of Electronic Publication: 2020 Nov 11 (Print Publication: 2020).
Publication Year :: 2020
Abstract: Introduction: Chondrosarcoma is a tumour with a cartilaginous matrix frequently encountered in long bones and the pelvis with rare sinonasal location. Patient and Methods: We report the case of a 25-year-old patient who was referred to us for an extension work-up for sinonasal chondrosarcoma confirmed by anatomopathological examination. Results: Facial magnetic resonance imaging (MRI) confirmed by a CT scan showed an osteolytic tumour process of the hard palate and walls of the left maxillary sinus that was locally advanced. Conclusion: The sinonasal location of a chondrosarcoma is rare. Characterized by cross-sectional imaging, confirmation was provided by histological assessment. Learning Points: The sinonasal location of a chondrosarcoma is rare.A slow-growing tumour with a cartilage matrix in adults, it is revealed mainly by neurosensorial signs and mass effect in its sinonasal location.Radiological characterization includes areas with a weak signal on T1- and T2-weighted images in MRI, not enhanced by gadolinium, corresponding to the cartilage matrix. Competing Interests: Conflicts of Interests: The Authors declare that there are no competing interests. (© EFIM 2020.)