title: Simultaneous development of a fibromyxosarcoma of the ileum and argentaffinoma of the appendix.
mesh_terms: D000328:Adult; D001063:Appendiceal Neoplasms / Q000150:complications*; D002276:Carcinoid Tumor / Q000150:complications*; D005354:Fibrosarcoma / Q000150:complications*; D006801:Humans; D007082:Ileum; D007414:Intestinal Neoplasms / Q000150:complications*; D008297:Male; D009378:Neoplasms, Multiple Primary