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  2. Childhood cancer - Wikipedia

    en.wikipedia.org/wiki/Childhood_cancer

    Children with cancer are often exposed to these preventable infections and diseases. Tumor registries only cover 11% of the African population, and there is a significant absence in death registration, making the mortality database unreliable. Overall, there is a lack of reliable data, as there is limited funding and many diseases are largely ...

  3. List of cancer types - Wikipedia

    en.wikipedia.org/wiki/List_of_cancer_types

    The following is a list of cancer types. Cancer is a group of diseases that involve abnormal increases in the number of cells, with the potential to invade or spread to other parts of the body. [1] Not all tumors or lumps are cancerous; benign tumors are not classified as being cancer because they do not spread to other parts of the body. [1]

  4. Brain tumor - Wikipedia

    en.wikipedia.org/wiki/Brain_tumor

    This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...

  5. Cancer - Wikipedia

    en.wikipedia.org/wiki/Cancer

    The dispersed tumors are called metastatic tumors, while the original is called the primary tumor. Almost all cancers can metastasize. [38] Most cancer deaths are due to cancer that has metastasized. [39] Metastasis is common in the late stages of cancer and it can occur via the blood or the lymphatic system or both. The typical steps in ...

  6. Central nervous system tumor - Wikipedia

    en.wikipedia.org/wiki/Central_nervous_system_tumor

    A central nervous system tumor (CNS tumor) is an abnormal growth of cells from the tissues of the brain or spinal cord. [1] CNS tumor is a generic term encompassing over 120 distinct tumor types. [2] Common symptoms of CNS tumors include vomiting, headache, changes in vision, nausea, and seizures. [3]

  7. Nervous system neoplasm - Wikipedia

    en.wikipedia.org/wiki/Nervous_system_neoplasm

    In children aged 0–14 years, the most common brain tumors are pilocytic astrocytomas (17.5%), embryonal tumors (15.7%), and malignant gliomas (25.7%). [15] The overall incidence rate of brain tumors in children is 6.2 per 100,000. [9] The distribution and behavior of nervous system neoplasms differ significantly between adults and children.

  8. List of childhood diseases and disorders - Wikipedia

    en.wikipedia.org/wiki/List_of_childhood_diseases...

    The term childhood disease refers to disease that is contracted or becomes symptomatic before the age of 18 or 21 years old. Many of these diseases can also be contracted by adults. Some childhood diseases include:

  9. Blastoma - Wikipedia

    en.wikipedia.org/wiki/Blastoma

    About 15% of all cancer-related deaths in the pediatric age group are related to this disease, with incidence of around 10.2 cases per million children younger than 15 years old and 500 new cases reported every year. 90% of these cases are diagnosed before 5 years of age, but 30% of them are found within the first year of life.