A rare diagnosis in the head and neck region: leiomyosarcoma.

A rare case of leiomyosarcoma in the neck was presented. Several common characteristics of head and neck leiomyosarcoma were summarized in this case: the low-grade behavior of this tumor, the difficulty of aspiration cytology to provide accurate morphologic classification of this like most other soft tissue tumors, the necessity for appropriate immunohistochemical investigation for accurate diagnosis, the nonspecificity of the radiologic findings, the necessity for en bloc three-dimensional resection of the tumor with adequate soft tissue margins that is actually the mainstay of treatment in this type of cancer, and the propensity to metastasize to distant organs.