Cancer

Pathogenesis False-color scanning electron micrograph of a lung cancer cell dividing Similar to many other cancers, lung cancer is initiated by activation of oncogenes or inactivation of tumor suppressor genes.Carcinogens cause mutations in these genes which induce the development of cancer. Mutations in the K-ras proto-oncogene are responsible for 10–30% …

Diagnosis CT scan showing a cancerous tumor in the left lung Performing a chest radiograph is one of the first investigative steps if a person reports symptoms that may suggest lung cancer. This may reveal an obvious mass, widening of the mediastinum (suggestive of spread to lymph nodes there), atelectasis …

Liver cancer, also known as hepatic cancer, is a cancer which starts in the liver, rather than migrating to the liver from another organ or section of the body. In other words, it is a primary liver cancer. Cancers that originate elsewhere and eventually reach the liver are known as …

Lung cancer Lung cancer, also known as lung carcinoma,is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung This growth can spread beyond the lung by the process of metastasis into nearby tissue or other parts of the body. Most cancers that start in the …