Multifocal, recurrent sinonasal leiomyosarcoma: case report and review of literature.

Leiomyosarcoma is a rare tumor encountered in the sinus and skull base, and can be difficult to control. We present a case of an 83 year old female with a recurrent sinonasal leiomyosarcoma. The tumor exhibited variable growth rates of recurrences in non-contiguous sites despite having obtained clear surgical margins and use of adjuvant therapy. This case illustrates unusual characteristics of this rare tumor that are important for clinicians to know. Patient demographics, presenting symptoms, risk factors, treatment options, and prognosis are also reviewed.