A Case of Retropharyngeal Liposarcoma Causing Obstructive Sleep Apnea

Although liposarcomas are second most frequently encountered sarcomas that occur in soft tisue, liposarcomas of the head and size to cause mas efect. Depending on the location of the pharyngeal tumor, patients may present with foreign body sensation on throat, swallowing dificulty, respiratory dificulty, a painles neck mas, or obstructive slep apnea. Recently we have expe-rienced a case of retropharyngeal liposarcoma causing obstructive sleep apnea, so we report our clinical experiences with a brief review of literature.;51 :577-80) v