Leiomyosarcoma Of The Maxillary Sinus: An Unusual Site Of Occurrence

摘要

We report the case of a 31-year-old female who presented to us with a facial swelling that was diagnosed to be a leiomyosarcoma of the maxillary sinus. The patient was subjected to radical surgery followed by radiotherapy and is free from disease one year following the treatment. Introduction Leiomyosarcoma are rare aggressive mesenchymal neoplasms. Since they arise from smooth muscles, they are usually more common in the uterus, gastrointestinal tract and retroperitonium where there is an abundance of smooth muscle tissue. Only about 3-10% of all leiomyosarcomas arise in the head and neck region 1 . Common sites of occurrence in the head and neck include the erector pili muscle in skin, vessel wall, circumvallate papilla, primitive mesenchyme and myoepithelial cells of salivary glands, paranasal sinuses, scalp, cervical esophagus, cheek, buccal mocosa, nose, nasopharynx ,tongue, and larynx 1,2,3,4,5,6 . Case Report A 31-year-old female presented to us with a swelling in the area of the right cheek for last four months. The patient was only cosmetically concerned about the mass, as she had no other complaints. It was a firm smooth mass on palpation, about 1.5 X 2 cm in size, with well-defined margins and non-tender.