Leiomyosarcoma in sternocleidomastoid muscle: a case report

Abstract

Introduction: Leiomyosarcoma (LMS) is rare, although commonly described in oral cavity. It can appear anywhere smooth muscle is present and there are reports of this type of neoplasm in many subsites in head and neck. Case Report: 44-year-old male patient with 2-year-history of cervical nodule, progressively growing, causing pain and neck movement limitation. Patient underwent en bloc resection of the tumor along with right ECM muscle, cervical levels II, III, IV and V. Discussion: Primary resection with wide margins is the treatment of choice for localized lesions. The present case originating in ECM may be unique until now, but it was handled based on the available literature and presented a satisfactory outcome.