Cancer Department Disease Health Reader

Author: Yang Yuehua, Xu Min, Qian Peifen / Country: Mainland China
Publisher:
Publish Date: 2006-07-01
Features:
1. What is a tumor? A tumor is a new growth formed in the human body when normal cells undergo excessive proliferation or abnormal differentiation under the long-term influence of certain adverse factors. Tumor cells differ from normal cells as they infiltrate and spread to surrounding tissues, and may even metastasize to other organs and tissues, posing a significant threat to the body.
2. What is a benign tumor? A benign tumor is an abnormal proliferation of cells in certain tissues of the body, gradually enlarging like a balloon. It grows relatively slowly. Due to the continuous enlargement of the tumor mass, it can compress surrounding tissues but does not invade adjacent normal tissues. The boundary between the tumor and normal tissue is clear, and it can be moved by hand. It is easily and completely removed surgically, does not metastasize, and rarely recurs.
3. What is cancer? In medicine, malignant tumors originating from epithelial tissues are referred to as "cancer." Cancer is more common in middle-aged and elderly people over 40. From the perspective of metastatic pathways, cancer often spreads through lymphatic vessels. Cancer arising from squamous epithelial cells is called squamous cell carcinoma, abbreviated as SCC, and commonly occurs in parts of the body covered by squamous epithelium, such as the skin, oral cavity, esophagus, larynx, cervix, vagina, penis, etc. Cancer arising from glandular epithelial cells is called adenocarcinoma, which is more common in the stomach, intestines, breast, liver, thyroid, salivary glands, bronchi, and uterine body.
4. What is a sarcoma? Malignant tumors originating from mesenchymal tissues (including connective tissues and muscles) are called "sarcomas." They are more common in the skin, subcutaneous tissue, periosteum, and ends of long bones.
5. Does cancer be inherited? Objectively speaking, cancer is not a direct hereditary disease, but it cannot be denied that certain cancers do have a certain genetic factor. If a family member develops cancer, do not overthink it and should maintain a positive mood, help the family member build confidence in fighting cancer, while also paying attention to boosting your immunity. Learn and understand cancer knowledge—this is what matters most.
6. Does cancer be contagious? For many years, medical professionals have believed that human cancers are not contagious. Some viruses associated with cancer, such as human papillomavirus (HPV) and hepatitis B virus, are linked to the development of cervical cancer and liver cancer, but there is still no evidence to date that these cancers directly spread to others.
7. What is lymphoma? Lymphoma is a malignant tumor that occurs in lymphatic reticular cells. These cells are primarily located in lymph nodes, and the initial clinical symptoms are often swollen lymph nodes. However, since lymphatic reticular cells are widely distributed throughout the body, lymphoma can also occur outside the lymph nodes, or even outside the lymphatic system, such as in the lungs, liver, bones, stomach, intestines, etc. Based on the presence or absence of large reticular cells, lymphoma can be divided into two major categories: Hodgkin lymphoma and non-Hodgkin lymphoma. P2-3