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Carcinoma is a malignancy that develops from epithelial cells. [1] Specifically, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells originating in the endodermal, mesodermal [2] or ectodermal germ layer during embryogenesis.
Carcinoma, the majority of cancer cells are epithelial in origin, beginning in a tissue that lines the inner or outer surfaces of the body. [5] Leukaemia, originate in the tissues responsible for producing new blood cells, most commonly in the bone marrow. [6] [7] Lymphoma and myeloma, derived from cells of the immune system. [8]
These can be further classified as primary tumors, which start within the brain, and secondary tumors, which most commonly have spread from tumors located outside the brain, known as brain metastasis tumors. [1] All types of brain tumors may produce symptoms that vary depending on the size of the tumor and the part of the brain that is involved ...
Removal of tumor tissues helps decrease the pressure of the tumor on nearby parts of the brain. [17] The main goal of surgery is to remove as much as possible of the tumor mass while preserving normal brain function, and to relieve the symptoms caused by the tumor such as headache, nausea and vomiting. [18]
Epitheliomas can be benign growths or malignant carcinomas. They are classified according to the specific type of epithelial cells that are affected. [1] The most common epitheliomas are basal cell carcinoma and squamous cell carcinoma (skin cancers). [1]
The human brain is the central organ of the nervous system, and with the spinal cord, comprises the central nervous system. It consists of the cerebrum, the brainstem and the cerebellum. The brain controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sensory nervous system ...
Squamous-cell carcinoma (SCC), also known as epidermoid carcinoma, comprises a number of different types of cancer that begin in squamous cells. [1] These cells form on the surface of the skin, on the lining of hollow organs in the body, and on the lining of the respiratory and digestive tracts .
The tumor occurs in the tissue covering the brain and spinal cord. The symptoms of the tumor are dependent on its location, but most children experience seizures that cannot be controlled by medication. DNT is usually treated through invasive surgery and the patients are usually capable of recovering fully, with little to no long-term effects. [9]