The autohors report a caso of an incidentally discovered myxoid stromal tumor occuring in the outer wall of the stomach of a 65-year old woman. The tumor was phenotipically consisten with parqchordoma (or myoepithelioma)showing a chordoid microscpic appearance of tumor cells loosely arranged within a myxoid or hyaline background. Immunoreactiveity for high -molecular-weight keratins, S100 protein and vimentin was detected. In this report, the autohors address the different diagnosis of parachordoma and unusual location of this neoplasm.
