[Vascular sarcomas of the ethmoid sinus (hemangioendothelioma)].

Vascular sarcomas (haemangio-endotheliomas) are tumours which are very rarely encountered in the facial mass. Only 10 cases have been found in the literature. Two cases are described: the first patient was operated on in 1968 for a localization in the left side of the ethmoid and presented 9 year later with a recurrence on the right side symmetrical with the first which remained apparently cured; a year later, there was a recurrence on the right then diffuse pulmonary metastases.