Retrospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Feb 14, 2015; 21(6): 1845-1850
Published online Feb 14, 2015. doi: 10.3748/wjg.v21.i6.1845
Table 1 Baseline characteristics of the patients n (%)
Age, median (range)51 (29-80)
Sex
Male25 (49.0)
Female26 (51.0)
Primary site
Mesentery15 (29.4)
Retroperitoneum13 (25.5)
Omentum8 (15.7)
Vagina3 (5.9)
Liver3 (5.9)
Ovary2 (3.9)
Pancreas2 (3.9)
Perianal area2 (3.9)
Chest wall1 (2.0)
Pleura1 (2.0)
Prostate1 (2.0)
Tumor size, median (range)9.0 cm (2.6-30.0)
Mitotic rate1, median (range)5.0 (1-185)
Histologic morphology
Epithelioid15 (29.4)
Spindle27 (52.9)
Pleomorphic9 (17.7)
KIT IHC
Positive47 (92.2)
Negative4 (7.8)
CD34 IHC (n = 31)
Positive25 (80.6)
Negative6 (19.4)
DOG1 IHC (n = 13)
Positive13 (100.0)
Negative0 (0.0)
KIT gene analysis (n = 16)
Exon 11 mutation6 (37.5)
Wild-type10 (62.5)
PDGFRα gene analysis (n = 6)
Exon 18 mutation4 (66.7)
Wild type2 (33.3)