Table 2: The immunohistochemical results of the patients with rectal GIST.

Immunohistochemistry

Positive rate

CD117

97.8%(45/46)

CD34

97.8%(45/46)

DOG-1

97.7%(42/43)

Desmin

4.7%(2/43)

Actin

9.5%(4/42)

S-100

14.0%(6/43)

Ki-67

92.9%(39/42)