Answer :
Cancer is a broad term for a group of diseases characterized by the uncontrolled growth and spread of abnormal cells. There are over 100 types of cancer, typically categorized by the tissue or organ where they originate. Here are some common types of cancer:
Carcinomas: These cancers originate in the skin or tissues that line or cover internal organs.
Adenocarcinoma: Starts in glandular cells (e.g., breast, prostate, lung, and colorectal cancers).
Squamous Cell Carcinoma: Begins in squamous cells (e.g., skin, lung, and esophageal cancers).
Sarcomas: These cancers begin in the connective or supportive tissues such as bone, cartilage, fat, muscle, or blood vessels.
Osteosarcoma: A type of bone cancer.
Liposarcoma: A cancer that begins in fat cells.
Leukemias: These cancers start in the blood-forming tissues like the bone marrow and result in high numbers of abnormal blood cells entering the bloodstream.
Acute Lymphoblastic Leukemia (ALL): A fast-growing leukemia.
Chronic Myeloid Leukemia (CML): A slower-growing leukemia.
Lymphomas: These cancers begin in the cells of the immune system.
Hodgkin Lymphoma: Characterized by the presence of Reed-Sternberg cells.
Non-Hodgkin Lymphoma: A diverse group of blood cancers that include various types of lymphomas.
Myelomas: These cancers originate in the plasma cells of the bone marrow.
Multiple Myeloma: The most common type, affecting multiple areas in the bone marrow.
Melanomas: These cancers start in the cells that produce melanin (the pigment that gives skin its color).
Cutaneous Melanoma: Skin melanoma.
Ocular Melanoma: Melanoma of the eye.
Brain and Spinal Cord Tumors: Cancers that originate in the central nervous system.
Gliomas: Originating in the glial cells.
Meningiomas: Arising from the meninges, the protective membranes covering the brain and spinal cord.
Other Specific Organ Cancers:
Lung Cancer: Divided into small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC).
Breast Cancer: Can start in the ducts or lobules of the breast.
Prostate Cancer: Originates in the prostate gland.
Colorectal Cancer: Starts in the colon or rectum.
Pancreatic Cancer: Begins in the tissues of the pancreas.
