Synovial sarcoma of the supraclavicular region causing a hemorrhagic shock.

A cystic mass that rapidly increases in volume in a dangerous anatomical region, notably the supraclavicular region, which contains important neurovascular elements, must be considered at high risk. A vascular study is mandatory before biopsy. Neoadjuvant chemotherapy can be a treatment option in high-risk synovial sarcoma.

Fibrosarcoma of the ethmoid sinus: A rare entity.

Introduction: Ethmoidal fibrosarcoma is an extremely rare tumor which represent less than one percent of all malignancies in this anatomical area, the case of a 13-year-old is reported here.

Presentation Of Case: A 13-year-old boy, his medical history was marked exclusively before presented to our hospital by an exophthalmia. Rhinoscopic examination showed well-defined pink mass at the level of ethmoid.