Tumors are classified based on their cellular origin and behavior:
- Benign Tumors: Non-cancerous growths that do not invade surrounding tissues. - Malignant Tumors: Cancerous growths that invade and destroy nearby tissues and can metastasize. - Carcinomas: Malignant tumors originating from epithelial cells. - Sarcomas: Malignant tumors arising from connective tissues. - Lymphomas and Leukemias: Malignancies originating from lymphoid or hematopoietic tissues.
