GIST

This serosal lesion on small intestine is GIST. GISTs are different from leiomyoma in gross appearance. While leiomyoma have white pale fibrosed lesion, GISTs tend to have burgundy color.





























The spherical GIST was split half, mucosa exposed underneath. Grossly the lesion didn't seem to involve mucosa.





























Touch prep shows abundant spindle cells. Leiomyoma will barely have cells on touch prep, unlike GIST.































Frozen section image.