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  2. Pituitary adenoma - Wikipedia

    en.wikipedia.org/wiki/Pituitary_adenoma

    Lateral expansion of a pituitary adenoma can also compress the abducens nerve, causing a lateral rectus palsy. [9] Also, a pituitary adenoma can cause symptoms of increased intracranial pressure. Prolactinomas often start to give symptoms especially during pregnancy, when the increased hormone level estrogen can increase the tumor's growth rate ...

  3. Pituicytoma - Wikipedia

    en.wikipedia.org/wiki/Pituicytoma

    Pituicytoma is a rare brain tumor. It grows at the base of the brain from the pituitary gland. This tumor is thought to be derived from the parenchymal cells of the posterior lobe of the pituitary gland, called pituicytes. Some researchers [1] believe that they arise from the folliculostellate cells in the anterior lobe of the pituitary.

  4. Chiasmal syndrome - Wikipedia

    en.wikipedia.org/wiki/Chiasmal_syndrome

    Pituitary tumors often encroach upon the middle chiasm from below. Pituitary apoplexy is one of the few acute chiasmal syndromes. It can lead to sudden visual loss as the hemorrhagic adenoma rapidly enlarges. The embryonic remnants of Rathke's pouch may undergo neoplastic change called a craniopharyngioma. These tumors may develop at any time ...

  5. 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 3 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 ...

  6. Pituitary disease - Wikipedia

    en.wikipedia.org/wiki/Pituitary_disease

    Autoimmune hypophysitis (or lymphocytic hypophysitis), inflammation of the pituitary gland due to autoimmunity. Nelson's syndrome, may occur after surgical removal of both adrenal glands, an out-dated method of treating Cushing's disease. Pituitary tumour, a tumor of the pituitary gland. Pituitary adenoma, a noncancerous tumor of the pituitary ...

  7. Central nervous system tumor - Wikipedia

    en.wikipedia.org/wiki/Central_nervous_system_tumor

    The American Cancer Society estimated the number of new cases of pediatric CNS tumors in the US in 2019 to be 23,820, and the number of deaths attributable to CNS tumors to be 17,760. [ 7 ] The incidence rates of the most common brain tumors for adult patients is very different, with meningiomas being the most common tumor, accounting for 38% ...

  8. Rathke's cleft cyst - Wikipedia

    en.wikipedia.org/wiki/Rathke's_cleft_cyst

    A Rathke's cleft cyst is a benign growth on the pituitary gland in the brain, specifically a mucin-filled [1] cyst in the posterior portion of the anterior pituitary gland. [2] [3] It occurs when the Rathke's pouch does not develop properly and ranges in size from 2 to 40 mm in diameter.

  9. Neuroectodermal neoplasm - Wikipedia

    en.wikipedia.org/wiki/Neuroectodermal_neoplasm

    They are most commonly tumors in the central or peripheral nervous system. [citation needed] Tumors exhibiting neuroectodermal differentiation are classified into two main groups: [2] Group I tumors/neoplasms: neuroendocrine carcinomas. These show predominantly epithelial differentiation. They include pituitary adenoma and carcinoid tumor

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