title: Granular cell tumor of the appendix.
mesh_terms: D001063:Appendiceal Neoplasms / Q000473:pathology*; D003594:Cytoplasmic Granules / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009379:Neoplasms, Muscle Tissue / Q000473:pathology*