Choroid Plexus Papilloma


MSH: A usually benign neoplasm that arises from the cuboidal epithelium of the choroid plexus and takes the form of an enlarged CHOROID PLEXUS, which may be associated with oversecretion of CSF. The tumor usually presents in the first decade of life with signs of increased intracranial pressure including HEADACHES; ATAXIA; DIPLOPIA; and alterations of mental status. In children it is most common in the lateral ventricles and in adults it tends to arise in the fourth ventricle. Malignant transformation to choroid plexus carcinomas may rarely occur. (Adams et al., Principles of Neurology, 6th ed, p667; DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2072),NCI: A benign neoplasm of the choroid plexus of the central nervous system.,NCI: A benign, slow growing tumor which may cause symptoms by blocking cerebrospinal fluid pathways. It is characterized by the presence of delicate fibrovascular connective tissue fronds covered by a single layer of epithelial cells. Mitotic activity is extremely

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