Multiple Gastric Gastrointestinal Stromal Tumors in a Patient with Neurofibromatosis Type 1

Figure 4

Histopathological analysis. (a) The tumors consisted of spindle cells. (b) Positive for KIT (CD117). (c) Positive for CD34. (d) Positive for DOG-1.

(a)

(b)

(c)

(d)