Clinicopathological features of 9 cases of extragastrointestinal stromal tumor
Li Junkuo
Ji Yuanyuan
Abstract：Objective To study the clinicopathological and immunohistochemical characteristics of extragastrointestinal stro-mal tumors (EGISTs).Methods The clinical data and immunohistochemical results of 9 cases of EGISTs were analyzed.Re-sults There were 4 males and 5 females in 9 cases of EGISTs,ranging from 38 to 69 years old (mean 55 years old).3 cases oc-curred in mesenterium,2 in greater omentum,2 in cardia,1 in esophagus and 1 in cavitas pelvis.The clinical manifestations were abdominal distension,abdominal pain,frequent urination,vomiting,etc.Histologically,there were 4 cases of spindle cell type,3 cases of epithelioid cell type and 2 cases of mixed cell type.Immunohistochemically,the expression rates of CD117,DOG1 ,CD34, SMA,Des and S -100 protein were 77.8%(7 /9),88.9%(8 /9),33.4%(3 /9),22.2%(2 /9),0.0%(0 /9),0%(0 /9),re-spectively.Conclusion EGISTs predominantly occurs in middle -aged and older patients.Combined detection of CD117,DOG1 and CD34 may improve its accurate diagnosis rate.Surgery is the principal and effective procedure for EGISTs.
Keywords：extragastrointestinal stromal tumorsclinicopathology featuresimmunohistochemistry
Publication Date：2016-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 420-422 )