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)
craniopharyngioma +
Davenport Donlan Syndrome
diffuse leptomeningeal glioneuronal tumor
dysembryoplastic neuroepithelial tumor
ethmoid sinus Schneiderian papilloma
Familial Cutaneous Papillomatosis
Florid Papillomatosis of Nipple
focal nonepidermolytic palmoplantar keratoderma +
frontal sinus Schneiderian papilloma
gallbladder papillomatosis
gangliocytoma
Ichthyosis Hystrix Gravior
intraductal papilloma
inverted papilloma +
Laryngeal Papillomatosis
low grade glioma +
meningeal melanocytoma
multinodular and vacuolating neuronal tumor
myxoid glioneuronal tumor
nasal vestibule papilloma
neurilemmoma of the fifth cranial nerve
papillary adenoma +
papillary glioneuronal tumor
perineural angioma
peripheral nervous system benign neoplasm +
polymorphous low grade neuroepithelial tumour of the young