Nomenclature of Tumors
Tissue of Origin Benign Malignant
COMPOSED OF ONE PARENCHYMAL CELL TYPE
Tumors of Mesenchymal Origin
Connective tissue and derivatives Fibroma Fibrosarcoma
Lipoma Liposarcoma
Chondroma Chondrosarcoma
Osteoma Osteogenic sarcoma
Endothelial and Related Tissues
Blood vessels Hemangioma Angiosarcoma
Lymph vessels Lymphangioma Lymphangiosarcoma
Synovium Synovial sarcoma
Mesothelium Mesothelioma
Brain coverings Meningioma Invasive meningioma
Blood Cells and Related Cells
Hematopoietic cells Leukemias
Lymphoid tissue Lymphomas
Muscle
Smooth Leiomyoma Leiomyosarcoma
Striated Rhabdomyoma Rhabdomyosarcoma
Tumors of Epithelial Origin
Stratified squamous Squamous cell papilloma Squamous cell carcinoma
Basal cells of skin or adnexa Basal cell carcinoma
Epithelial lining of glands or ducts Adenoma Adenocarcinoma
Papilloma Papillary carcinomas
Cystadenoma Cystadenocarcinoma
Respiratory passages Bronchial adenoma Bronchogenic carcinoma
Renal epithelium Renal tubular adenoma Renal cell carcinoma
Liver cells Liver cell adenoma Hepatocellular carcinoma
Urinary tract epithelium
(transitional)
Transitional-cell papilloma Transitional-cell carcinoma
Placental epithelium Hydatidiform mole Choriocarcinoma
Testicular epithelium (germ cells) Seminoma
Embryonal carcinoma
Tumors of Melanocytes Nevus Malignant melanoma
MORE THAN ONE NEOPLASTIC CELL TYPE—MIXED TUMORS, USUALLY DERIVED FROM ONE GERM CELL LAYER
Salivary glands Pleomorphic adenoma (mixed tumor of
salivary origin)
Malignant mixed tumor of salivary
gland origin
Renal anlage Wilms tumor
MORE THAN ONE NEOPLASTIC CELL TYPE DERIVED FROM MORE THAN ONE GERM CELL LAYER—TERATOGENOUS
Totipotential cells in gonads or in
embryonic rests
Mature teratoma, dermoid cyst Immature teratoma, teratocarcinoma
Carlos S. - Nomenclature of Tumors