title: A new clinical manifestation for cheek alveolar soft-part sarcoma: a case report and review of the literature.
abstract: Alveolar soft part sarcoma (ASPS) is a rare, histologically distinct, soft tissue malignancy with nonspecific clinical features usually described as a nonulcerated, painless, expanding mass. It has a pseudoalveolar appearance with clustered polygonal cells lacking central cohesion. It accounts for approximately 0.5 to 1% of all soft tissue sarcomas. It has a strong predilection for adolescents and young adults 15 to 35 years old, with a female predominance. In general, ASPS grows slowly, with a predilection for the trunk and extremities and rarely in the head and neck region. A literature review found only 11 cases of cheek ASPS that have been reported since 1952. This report describes the case of an unusually rapidly growing mass in the cheek of a 36-year-old woman. The superficial location of the mass led to early detection and treatment.
authors.affiliation: Postgraduate, Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors.forename: Hong-wei
authors.initials: HW
authors.lastname: Wang
authors.affiliation: Associate Professor, Department of Oromaxillofacial-Head and Neck Surgery, School of Stomatology, China Medical University, Shenyang, Liaoning, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Dai
authors.affiliation: Associate Professor, Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address: qinxj1989@sina.cn.
authors.forename: Xing-jun
authors.initials: XJ
authors.lastname: Qin
authors.affiliation: Professor, Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors.forename: Chen-ping
authors.initials: CP
authors.lastname: Zhang
mesh_terms: D000328:Adult; D002610:Cheek / Q000473:pathology*; D003937:Diagnosis, Differential; D005152:Facial Muscles / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D058752:Free Tissue Flaps; D006801:Humans; D008048:Lip Neoplasms / Q000473:pathology; D008406:Masseter Muscle / Q000473:pathology; D009061:Mouth Mucosa / Q000473:pathology; D009062:Mouth Neoplasms / Q000175:diagnosis*; D019042:Muscle Neoplasms / Q000473:pathology; D009361:Neoplasm Invasiveness; D018714:Radiotherapy, Adjuvant; D019651:Plastic Surgery Procedures / Q000379:methods; D018234:Sarcoma, Alveolar Soft Part / Q000175:diagnosis*