title: Primary monophasic synovial sarcoma of the liver in a 13-year-old boy.
abstract: Synovial sarcoma originating in the liver is extremely rare, and thus far only 3 cases have been reported in the English literature. Herein, we report a primary hepatic synovial sarcoma in a 13-year-old Chinese boy. This patient present with a 10-day right upper quadrant pain, and a heterogeneous mass was documented in the right hepatic lobe by computed tomography. Subsequently, the patient underwent right hepatectomy. Histologically, the tumor exhibited classic features of monophasic synovial sarcoma. The diagnosis was confirmed by the presence of SS18 gene rearrangement and identification of SS18-SSX1 fusion transcript. Unfortunately, a relapsing mass was detected 11 months after the surgery. To the best of our knowledge, the current case is the 1st published example in the pediatric population.
authors.affiliation: 1  Department of Pathology, West China Hospital, Sichuan University, 610041 Chengdu, Sichuan, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Xiong
authors.forename: Min
authors.initials: M
authors.lastname: Chen
authors.forename: Feng
authors.initials: F
authors.lastname: Ye
authors.forename: Zhuxue
authors.initials: Z
authors.lastname: Zhang
authors.forename: Lijuan
authors.initials: L
authors.lastname: Yin
authors.forename: Huifen
authors.initials: H
authors.lastname: Huang
authors.forename: Huijiao
authors.initials: H
authors.lastname: Chen
authors.forename: Hongying
authors.initials: H
authors.lastname: Zhang
mesh_terms: D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics / Q000473:pathology* / Q000601:surgery; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000235:genetics / Q000473:pathology; D015514:Oncogene Proteins, Fusion / Q000235:genetics; D013584:Sarcoma, Synovial / Q000235:genetics / Q000473:pathology* / Q000601:surgery
chemical_list: D015514:Oncogene Proteins, Fusion; C116512:SYT-SSX fusion protein