There are more than 100 types of cancer. Cancer types usually named for the organs or tissues, where the cancer is to be formed, eg., Lung cancer starts from the lung cells and brain cancer starts from brain cells. It may also be described by the type of cell which formed them, eg., an epithelial cell or a squamous cell.
Cancer are divided into following groups which they starts forms….
Carcinoma begins in the skin or the tissue which covers the surface of internal organs and glands. In carcinomas usually formed by epithelial cells. Theses cells covers inside and outside surface of the body. There are many types of epithelial cells. They are most common type of cancer.
These kind of cancer which forms in epithelial cells, it produce fluids or mucus. These type of tissues are called glandular tissues. Eg., prostate cancer, ling cancer, breast cancer. Colorectal cancer.
Basal Cell Carcinoma
Basal cell carcinoma starts in the lower or basal layer of the epidermis, it is a outer layer of the skin.
Squamous Cell Carcinoma
Squamous cell carcinoma is a forms in squamous cells, these cells are just beneath the outer surface of the skin. Squamous cells also found in many other organs. It includes, stomach, intestines, lungs, bladder and kidneys. Squamous cell carcinomas are also called epidermoid carcinomas. It look like, flat, like fish scales.
Transitional Cell Carcinoma
Transitional cells are found in the linings of the bladder, ureters, part of the kidneys (renal pelvis) and few other organs. These type of tissue called transitional epithelium or urothelium. Transitional cells made up of many layes of epithelial cells which can get bigger and smaller.
Lymphoma is one group of cancer which begins with lymphocytes. Lymphocytes includes T cells or B cells. Lymphatic system is work as a network of vessels and glands which helps to fight infection. In lymphoma, there is an abnormal growth in lymph nodes and lymph vessels and also in other organ in the body.
Lymphoma also divided in two types….
In this type of lymphoma, abnormal lymphocytes usually form from B cells. These abnormal lymphocytes are called Reed-Sternberg cells.
This type of cancer grows very quickly and sometimes slowly. It is form from B cells or T cells. This is a large group of cancer.
Leukaemia is a cancer of the blood, which is forms in the tissue of the bone marrow. In this cancer solid tumours does not form. Leukaemia starts when healthy blood cells change and grows uncontrollably. There is a large number of the White blood cells build up in the bone marrow and blood. The low level of the normal blood cells could made harder to get oxygen to its tissues, control bleeding and also fights with the infections.
There are four types of Leukaemia….
Acute Lymphocytic Leukaemia
Acute Lymphocytic Leukaemia (ALL) also known as Acute Lymphoblastic Leukaemia and Acute Lymphoid Leukaemia. It is a blood cancer. Theses cancer occurs when abnormal white blood cells (leukemia cells) accumulated in the bone marrow.
This leukaemia progresses rapidly. Healthy cells replacing by abnormal cells which produce functional lymphocytes, that cannot be matured properly. This leukaemia cells are carried out in the blood stream and through blood to other tissues and organ of the body. It includes, the brain, liver, testes, and lymph nodes.
Chronic Lymphocytes Leukaemia
Chronic lymphocytic leukaemia (CLL) is a slowly growing cancer, which starts through lymphocytes in the bone marrow and it extends into the blood. It is spread into lymph nodes, organs such as liver and spleen. Chronic lymphocytic leukaemia grows when too many abnormal lymphocytes grows and making it difficult for the body for fight infection. The abnormal cells takes longer periods for growing and multiplying.
Acute myeloid leukaemia
Acute myeloid leukaemia (AML), is known as acute myelogenous leukaemia, acute myeloblastic leukemia, acute granulocytic leukemia or acute nonlymphocytic leukemia. It is a fast growing form of cancer of the blood and bone marrow. These cells does not develops and are unable to ward off infections.
Chronic Myeloid Leukaemia
Chronic Myeloid Leukaemia (CML), it is also known as chronic myelogenous leukaemia. This cancer is also form of blood cancer, which affects the bone barrow and blood. This cancer grows slowly and change form slow progressing into a rapidly growing.
It is a most common cancer of bone. These cancers which forms in bone, soft tissues including muscle, fat, blood vessels, lymph vessels, fibrous tissue such as tendons and ligaments and tissues around the joints.
The formation of lump is called as tumour or a growth. But all lumps are not a cancer. Lumps which are not a cancer is called as benign and lumps which cancerous is called as malignant.
There are different types of tumour which is named based on the type of cell in which they formed. It includes, Brain tumour, Spinal cord tumour, germ cell tumours, neuroendocrine tumour (cells that release hormones into the blood in response to a signal from the nervous system), carcinoid tumour (found in the gastrointestinal system most often in the rectum and small intestine).