Figure 3From: The synchronous occurrence of squamous cell carcinoma and gastrointestinal stromal tumor (GIST) at esophageal siteImmuno – staining of GIST. A) KIT (CD117) immuno-staining in GIST. The tumor cells show strong cytoplasmic and perinuclear positivity; B) Negative immuno-staining for Desmin in GIST.Back to article page