title: [Alveolar soft part sarcoma of the larynx: a case report].
abstract: Alveolar soft part sarcoma (ASPS) is a rare soft tissue sarcomas, this sarcoma occurs rarely in the larynx. Herein, we describe an unusual case of ASPS occurring in the larynx. The patient was a 46-year-old woman who presented with a more than 2-year history of right pyriform fossa mass and progressive hoarseness for three months. The endoscopic examination of the larynx revealed a mass in the right pyriform fossa with smooth surface and well-defined margin. Computed tomography demonstrated a heterogeneous tumor in the right pyriform fossa, and involving the paralaryngeal space, measuring approximately 2.1 cm x 1.7 cm x 2.6 cm, which was resected via lateral neck approach. Histopathology and immunohistochemistry revealed an ASPS. To ours knowledge, this is the first reported case of ASPS arising in pyriform fossa.
authors.forename: Hao
authors.initials: H
authors.lastname: Xiao
authors.forename: Hui
authors.initials: H
authors.lastname: Yang
authors.forename: Huan
authors.initials: H
authors.lastname: Wang
mesh_terms: D005260:Female; D006685:Hoarseness; D006801:Humans; D007150:Immunohistochemistry; D007830:Larynx / Q000473:pathology*; D008875:Middle Aged; D018234:Sarcoma, Alveolar Soft Part / Q000473:pathology*; D014057:Tomography, X-Ray Computed