Lr. Donner, GASTROINTESTINAL AUTONOMIC NERVE TUMOR - A COMMON TYPE OF GASTROINTESTINAL STROMAL NEOPLASM, Ultrastructural pathology, 21(5), 1997, pp. 419-424
Seven of 15 gastrointestinal stromal tumors from the author's file wer
e classified as plexosarcomas when examined by electron microscopy and
immunohistochemistry. Electron microscopy was essential for the diagn
osis.