An ependymoma is a tumor that arises from the ependyma , a tissue of the central nervous system . Usually, in pediatric cases the location is intracranial , while in adults it is spinal . The common location of intracranial ependymomas is the floor of the fourth ventricle . Rarely, ependymomas can occur in the pelvic cavity .
14-639: [REDACTED] Look up eep in Wiktionary, the free dictionary. EEP or Eep may refer to: Early Entrance Program (CSU) , of the California State University Early Entrance Program, of the University of Washington; see Transition School and Early Entrance Program Education Equality Project , an American educational organization Eep Crood,
28-429: A sacrococcygeal teratoma . Guidelines for initial management for ependymoma are maximum surgical resection followed by radiation. Chemotherapy is of limited use and reserved for special cases including young children and those with tumor present after resection. Prophylactic craniospinal irradiation is of variable use and is a source of controversy given that most recurrence occurs at the site of resection and therefore
42-532: A fictional character in the movie The Croods , its sequel and a TV series " Eep, Opp, Ork, Ah-ah! ", a song in the U.S. TV series The Jetsons Ethiopian Electric Power European Endangered Species Programme European Environmental Press Export Enhancement Program , of the United States Department of Agriculture Extraspinal ependymoma , a type of ependymoma tumor UK Educational Evidence Portal Topics referred to by
56-455: A fictional character in the movie The Croods , its sequel and a TV series " Eep, Opp, Ork, Ah-ah! ", a song in the U.S. TV series The Jetsons Ethiopian Electric Power European Endangered Species Programme European Environmental Press Export Enhancement Program , of the United States Department of Agriculture Extraspinal ependymoma , a type of ependymoma tumor UK Educational Evidence Portal Topics referred to by
70-495: Is a localized and slow-growing low-grade tumor, which originates almost exclusively from the lumbosacral nervous tissue of young patients. On the other hand, it is the most common tumor of the lumbosacral canal comprising about 90% of all tumoral lesions in this region. Although some ependymomas are of a more anaplastic and malignant type, most of them are not anaplastic. Well-differentiated ependymomas are usually treated with surgery. For other ependymomas, total surgical removal
84-550: Is different from Wikidata All article disambiguation pages All disambiguation pages eep (Redirected from Eep ) [REDACTED] Look up eep in Wiktionary, the free dictionary. EEP or Eep may refer to: Early Entrance Program (CSU) , of the California State University Early Entrance Program, of the University of Washington; see Transition School and Early Entrance Program Education Equality Project , an American educational organization Eep Crood,
98-436: Is different from Wikidata All article disambiguation pages All disambiguation pages Ependymoma Syringomyelia can be caused by an ependymoma. Ependymomas are also seen with neurofibromatosis type II . Source: Ependymomas are composed of cells with regular, round to oval nuclei. There is a variably dense fibrillary background. Tumor cells may form gland-like round or elongated structures that resemble
112-444: Is the preferred treatment in addition to radiation therapy. The malignant (anaplastic) varieties of this tumor, malignant ependymoma and the ependymoblastoma , are treated similarly to medulloblastoma but the prognosis is much less favorable. Malignant ependymomas may be treated with a combination of radiation therapy and chemotherapy. Ependymoblastomas, which occur in infants and children younger than 5 years of age, may spread through
126-399: The central nervous system (CNS). Their occurrence seems to peak at age 5 years and then again at age 35. They develop from cells that line both the hollow cavities of the brain and the canal containing the spinal cord, but they usually arise from the floor of the fourth ventricle, situated in the lower back portion of the brain, where they may produce headache, nausea and vomiting by obstructing
140-445: The cerebrospinal fluid and usually require radiation therapy. The subependymoma, a variant of the ependymoma, is apt to arise in the fourth ventricle but may occur in the septum pellucidum and the cervical spinal cord. It usually affects people over 40 years of age and more often affects men than women. Extraspinal ependymoma ( EEP ), also known as extradural ependymoma , may be an unusual form of teratoma or may be confused with
154-525: The embryologic ependymal canal , with long, delicate processes extending into the lumen; more frequently present are perivascular pseudorosettes in which tumor cells are arranged around vessels with an intervening zone consisting of thin ependymal processes directed toward the wall of the vessel. It has been suggested that ependymomas are derived from radial glia, despite their name suggesting an ependymal origin. Ependymomas make up about 5% of adult intracranial gliomas and up to 10% of childhood tumors of
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#1732772536828168-617: The flow of cerebrospinal fluid. This obstruction may also cause hydrocephalus . They may also arise in the spinal cord, conus medullaris and supratentorial locations. Other symptoms can include (but are not limited to): loss of appetite, difficulty sleeping, temporary inability to distinguish colors, uncontrollable twitching, seeing vertical or horizontal lines when in bright light, and temporary memory loss. It should be remembered that these symptoms also are prevalent in many other illnesses not associated with ependymoma. About 10% of ependymomas are benign myxopapillary ependymoma ( MPE ). MPE
182-403: The same term [REDACTED] This disambiguation page lists articles associated with the title EEP . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=EEP&oldid=1209030114 " Category : Disambiguation pages Hidden categories: Short description
196-403: The same term [REDACTED] This disambiguation page lists articles associated with the title EEP . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=EEP&oldid=1209030114 " Category : Disambiguation pages Hidden categories: Short description
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