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  2. Esophageal cancer - Wikipedia

    en.wikipedia.org/wiki/Esophageal_cancer

    Esophageal cancer is the eighth-most frequently-diagnosed cancer worldwide, [2] and because of its poor prognosis, it is the sixth most-common cause of cancer-related deaths. [55] It caused about 400,000 deaths in 2012, accounting for about 5% of all cancer deaths (about 456,000 new cases were diagnosed, representing about 3% of all cancers).

  3. Mass effect (medicine) - Wikipedia

    en.wikipedia.org/wiki/Mass_effect_(medicine)

    In oncology, the mass typically refers to a tumor. For example, cancer of the thyroid gland may cause symptoms due to compressions of certain structures of the head and neck; pressure on the laryngeal nerves may cause voice changes, narrowing of the windpipe may cause stridor, pressure on the gullet may cause dysphagia and so on.

  4. Intracranial epidermoid cyst - Wikipedia

    en.wikipedia.org/wiki/Intracranial_epidermoid_cyst

    The chances of intracranial epidermoids is about 1% of all brain tumors. This benign tumor of the brain is made up of normal skin cells (stratified epithelial lining) on the outside, and fatty acids and keratin are on the inside of the tumor or sac. Only the sticky outer membrane is alive thus sticking to brain tissues and nerves. Epidermoid ...

  5. Central nervous system tumor - Wikipedia

    en.wikipedia.org/wiki/Central_nervous_system_tumor

    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 ]

  6. Causes of cancer pain - Wikipedia

    en.wikipedia.org/wiki/Causes_of_cancer_pain

    Between 40 and 80 percent of patients with cancer pain experience neuropathic pain. [1]Brain. Brain tissue itself contains no nociceptors; brain tumors cause pain by pressing on blood vessels or the membrane that encapsulates the brain (the meninges), or indirectly by causing a build-up of fluid that may compress pain-sensitive tissue.

  7. Mediastinal tumors - Wikipedia

    en.wikipedia.org/wiki/Mediastinal_tumors

    A mediastinal tumor is a tumor in the mediastinum, the cavity that separates the lungs from the rest of the chest. It contains the heart , esophagus , trachea , thymus , and aorta . The most common mediastinal masses are thymoma (20% of mediastinal tumors), usually found in the anterior mediastinum, followed by neurogenic Timor (15–20% ...

  8. Brain tumor - Wikipedia

    en.wikipedia.org/wiki/Brain_tumor

    Most brain tumors have higher ADC than normal brain tissues and doctors can match the observed ADC of the patient's brain tumor with a list of accepted ADC to identify tumor type. DWI is also useful for treatment and therapy purposes where changes in diffusion can be analyzed in response to drug, radiation, or gene therapy.

  9. Causes of cancer - Wikipedia

    en.wikipedia.org/wiki/Causes_of_cancer

    Cancer requires multiple mutations to progress. Cancer is caused by genetic changes leading to uncontrolled cell growth and tumor formation. The basic cause of sporadic (non-familial) cancers is DNA damage and genomic instability. [1] [2] A minority of cancers are due to inherited genetic mutations. [3]