[1] Takeshi T, Takaaki S, Shinji S, et al. Primary omental gastrointestinal stromal tumor (GIST) [J] .World J Surg Oncol, 2007, 5(6):66-71. [2] Liu Q Y, Kan Y Z, Zhang M Y, et al. Primary extragastrointestinal stromal tumor arising in the vaginal wall: significant clinicopathological characteristics of a rare aggressive soft tissue neoplasm[J]. World J Clin Cases, 2016, 4(4): 118-123. [3] Arpaci T,Tokat F,Arpaci R B,et al.Primary pericardial extragastrointestinal stromal tumor:a case report and literature review[J].Oncol Lett,2015,9(6):2726-2728. [4] Katz S C,Dematteo R P. Gastrointestinal stromal tumors and leiomyo sarcomas[J] . J Surg Oncol, 2008, 97(4):350-359. [5] Fulop E,Marcu S,Milutin D,et al. Gastrointestinal stromal tumors : review on morphology,diagnosis and management [J] . Rom J Morphol Embryol, 2009,50(3):319-326. [6] Raut C P,Morgan J A,Ashley S W. Current issues in gastrointestinal stromal tumors:incidence , molecular biology, contemporary t reatment of localized and advanced disease[J] . Curr Opin Gast roenterol, 2007,23(2):149-158. [7] Issakov J, Jiveliouk I, Nachmany I, et al. A histopat hological review of gast rointestinal related mesenchymal tumors : t he hidden GIST[J] . Isr Med Assoc J,2007,9(11):810-812. [8] Casella C, Villanacci V, D’Adda F, et al. Primary extra-gastrointestinal stromal tumor of retroperitoneum[J].Clin Med Insights Oncol, 2012,6(4):189-197. [9] Miettinen M,Wang Z F, Lasota J.DOG1 antibody in the differential diagnosis of gastrointestinal stromal tumors: a study of 1840 cases[J]. Am J Surg Pathol, 2009, 33(9):1401-1408. [10] Zhang C Q, Lu D G, Liu Q F, et al.Primary extragastrointestinal stromal tumor of the pleura: a case report[J]. Oncol Lett, 2016, 11(5):3135-3138. [11] Alexander B, Inga-Marie S, Philipp S, et al. Gastrointestinal stromal tumors[J]. Int J Colorectal Dis, 2012, 27(6):689-700. [12] Popescu I,Andrei S. Gastrointestinal stromal tumors[J].Chirurgia (Bucur),2008,103(2):155-170. [13] Ahmadu B U, Nnanubumom A A, Ibrahim R A.Rare occurrence of mix stromal tumours: a case report of gastrointestinal and extra-intestinal stromal tumour on the jejunum and omentum of a nine year old girl from Adamawa State, Nigeria[J]. Ethiop J Health Sci, 2013, 23(2):174-177.