[Extraskeletal Ewing's sarcoma of the parapharyngeal space: a case report].

Extraskeletal Ewing's sarcoma is a malignant tumour most often found in children and adolescents, but rarely in the cervicofacial region. When it affects the parapharyngeal space, diagnosis is often delayed, resulting in poor prognosis. We here report the clinical case of a 37-year-old female patient admitted to the emergency department with inspiratory dyspnea, asthenia and anorexia.