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  • Title: [Rare benign tumors of the nasal fossae and sinuses of the face (benign schwannoma, fibromyxoma].
    Author: Mahé E, Poncet P, Basset JM, Le Doussal V.
    Journal: Ann Otolaryngol Chir Cervicofac; 1983; 100(5):347-51. PubMed ID: 6881823.
    Abstract:
    The authors report the observation of two cases of benign schwannomas, one in the nasal cavities, the other in the maxillary sinus and a case of odontogenous fibromyxoma of the ethmoïdo-maxillary sinus. After a study of the observations, a literature review determines the benign character of these tumours, the possibilities of recurring in case of incomplete operation, the importance of computerized tomography to precise their extension, the histological difficulty of the diagnosis and the importance of ultrastructural study to identify them. Taking the cases of schwannomas, we settle two forms A and B (ie) Antoni, because of the myxoïde degeneration which predominate in the second type. Concerning the fibromyxomas histochemicals and ultrastructural studies allow us to definite the character of "myxoblast" or "fibroblast", Cells. Treatment of these lesions is essentially surgical and a long term prognosis is favourable.
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