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# Tumors Classification Based on Tissue of Origin and Cell Type This table classifies tumors based on the tissue of origin and whether the tumor is benign or malignant. | Tissue of Origin | Composed of One Parenchymal Cell Type | Benign | Malignant | |---|---|---|---| | Connective tissue and deriv...

# Tumors Classification Based on Tissue of Origin and Cell Type This table classifies tumors based on the tissue of origin and whether the tumor is benign or malignant. | Tissue of Origin | Composed of One Parenchymal Cell Type | Benign | Malignant | |---|---|---|---| | Connective tissue and derivatives | | Fibroma, Lipoma, Chondroma, Osteoma | Fibrosarcoma, Liposarcoma, Chondrosarcoma, Osteogenic sarcoma | | Endothelial and related tissues | Blood vessels, Lymph vessels, Mesothelium | Hemangioma, Lymphangioma | Angiosarcoma, Lymphangiosarcoma, Mesothelioma | | Brain coverings | | Meningioma | Invasive meningioma | | Blood cells and related cells | Hematopoietic cells, Lymphoid tissue | | Leukemias, Lymphomas | | Muscle | Smooth, Striated | Leiomyoma, Rhabdomyoma | Leiomyosarcoma, Rhabdomyosarcoma | | Tumors of epithelial origin | Stratified squamous, Basal cells of skin or adnexa, Epithelial lining of glands or ducts | Squamous cell papilloma, Adenoma, Papilloma, Cystadenoma, Bronchial adenoma, Renal tubular adenoma, Liver cell adenoma, Urothelial papilloma, Hydatidiform mole | Squamous cell or epidermoid carcinoma, Basal cell carcinoma, Adenocarcinoma, Papillary carcinomas, Cystadenocarcinoma, Bronchogenic carcinoma, Renal cell carcinoma, Hepatocellular carcinoma, Urothelial carcinoma, Choriocarcinoma | | Respiratory passages | | | | | Renal epithelium | | | Renal cell carcinoma | | Liver cells | | Liver cell adenoma | Hepatocellular carcinoma | | Urinary tract epithelium (transitional) | | | | | Placental epithelium | | | | | 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, Renal anlage | Pleomorphic adenoma (mixed tumor of salivary gland) | Malignant mixed tumor of salivary gland | | 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 | **Note:** This table provides a summary of common tumor types. There are many more specific tumor types and variations not included here. Consult medical resources for detailed information.