This case report describes a gastric small submucosal tumor endosonographically resembling a gastrointestinal stromal tumor (GIST). The presence of calcifications inside prompted for the surgical excision, and the pathologic examination revealed in fact the presence of a glomangioma (glomus tumor). The presented case is an illustration of the fact that not all masses arising from the muscularis propria layer are GISTs, and the endosonographer must always think of alternative diagnoses.