title: Hemangioendothelioma of the neck.
mesh_terms: D002675:Child, Preschool; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000532:radiotherapy*; D006390:Hemangioendothelioma / Q000175:diagnosis / Q000532:radiotherapy*; D006801:Humans; D008297:Male