Tumor Grade Vs. Stage Grade login to view 5 more bullets Stage login to view 9 more bullets Tumor nomenclature Carcinoma denotes epithelial origin Sarcoma denotes mesenchymal origin Tumor nomenclature Cell type Benign Malignant Epithelium Adenoma, papilloma Adenocarcinoma and papillary carcinoma Melanocyte Nevus Melanoma Mesenchyme Blood cells n/a Leukemia and lymphoma Blood vessels Hemangioma Angiosarcoma Smooth muscle Leiomyoma Leiomyosarcoma Skeletal muscle Rhabdomyoma Rhabdomyosarcoma Bone Osteoma Osteosarcoma Fat Lipoma Liposarcoma >1 cell type Mature teratoma (women) Immature teratoma and mature teratoma (men) Tumor differences Benign login to view 4 more bullets Malignant login to view 4 more bullets