Kasvajatüüp

Kasvajatüüp refers to the classification of tumors based on their cellular origin and behavior. Tumors are broadly categorized into benign and malignant. Benign tumors are non-cancerous growths that do not invade surrounding tissues or spread to other parts of the body. They typically grow slowly and are often enclosed in a capsule. Examples include lipomas and fibromas.

Malignant tumors, on the other hand, are cancerous. They have the potential to invade nearby tissues and metastasize, meaning they can spread to distant parts of the body through the bloodstream or lymphatic system. Malignant tumors often grow more rapidly than benign ones and can be more aggressive.

Further classification of tumors is based on the type of tissue from which they arise. Carcinomas originate from epithelial cells, which line organs and form skin. Sarcomas develop from connective tissues, such as bone, cartilage, muscle, and fat. Leukemias are cancers of the blood-forming tissues, while lymphomas affect the lymphatic system. Other types include melanomas, which arise from pigment-producing cells, and brain tumors, which originate in the brain. Understanding the specific kasvajatüüp is crucial for diagnosis, treatment planning, and predicting prognosis. Medical professionals use a combination of microscopic examination of cells, imaging techniques, and genetic analysis to determine the precise type of tumor.