Tumortípusok

Tumortípusok refers to the various classifications of tumors, which are abnormal growths of cells. These growths can be benign or malignant. Benign tumors are non-cancerous; they do not invade surrounding tissues or spread to other parts of the body. Malignant tumors, on the other hand, are cancerous and have the potential to invade nearby tissues and metastasize, meaning they can spread to distant sites in the body.

Tumors are broadly categorized based on the type of tissue from which they originate. Carcinomas arise from epithelial cells, which line organs and body surfaces. Sarcomas develop from connective tissues like bone, muscle, or cartilage. Leukemias are cancers of the blood-forming tissues, often affecting white blood cells. Lymphomas originate in the lymphatic system, which is part of the immune system. Melanomas are a type of skin cancer that develops from melanocytes, the cells that produce pigment.

Further classification involves the grade and stage of the tumor. Tumor grade describes how abnormal the cancer cells look under a microscope and how quickly the tumor is likely to grow and spread. Tumor stage describes the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has metastasized to other parts of the body. Understanding these tumortípusok is crucial for diagnosis, treatment planning, and predicting prognosis.