Malignant cancer is it?

Most people know that cancer is a malignant tumor, so "on mere mention of cancer." On the other hand, as long as that is not cancer is not malignant. In fact, from a professional point of view, cancer is a malignant tumor "malignant" ≠ "cancer." In addition to the "cancer", in a vicious, there is a category killer, known as "sarcoma." In the pathological diagnosis, malignant epithelial tissue sources named the "cancer", the source of mesenchymal malignant tumor was known as the "sarcoma." Cancer occurs in the elderly, and the sarcoma is more common in young people. Specifically, including the epithelial tissue lining epithelium and glandular, with protection, absorption, secretion and excretion function. The epithelial lining those covered in the affixed to the body surface and lining in a cavity of the organ cavity surface cells, such as skin, digestive tract, respiratory and urinary systems, such as epithelial; glandular secretion of the exercise are the main features, such as the common liver , Pancreas, thyroid and adrenal gland, and so on. In the "cancer" in accordance with different types of cell, divided into squamous cell carcinoma, adenocarcinoma, transitional cell carcinoma and basal cell carcinoma, and so on. For example, more than for esophageal squamous cell carcinoma; for more than gastric adenocarcinoma; bladder cancer for more than transitional cell carcinoma, and so on. Mesenchymal tissue, including fiber, fat, muscle, striated muscle, cartilage, bone, blood vessels, lymphatic vessels and lymph organizations, such as blood, so sarcoma can be divided into fibrosarcoma, liposarcoma, osteosarcoma, lymphosarcoma, and so on. In addition, the malignant tumor derived from embryonic tissue, known as the "RB", such as Wilms tumor, neuroblastoma, retinoblastoma, and so on. There are also traditional habit of naming malignant tumors, such as leukemia, Hodgkin's disease, melanoma, and so on. This shows that the diagnosis of many diseases, although not in the name of "cancer", but it may be malignant, the need for special treatment as soon as possible to do and can not report that there is no "cancer", to live in peace with that, and take it lightly.