Choroid plexus papilloma

**Choroid plexus papilloma**
*Classification & external resources*

Brain scan of an affected patient:The affected tumour area is white
ICD-10	C71.5
ICD-9	191.5
ICD-O:	9390
eMedicine	radio/171
MeSH	D020288

A Choroid plexus papilloma (CPP) is a a rare, slow-growing, histologically benign intracranial neoplasm or tumor that is commonly located in the ventricular system of the choroid plexus. It may obstruct the cerebrospinal fluid flow, causing increased intracranial pressure.

Additional recommended knowledge

Daily Visual Balance Check

Weighing the right way

Pathophysiology

The tumor is neuroectodermal in origin and similar in structure to a normal choroid plexus. They may be created by epithelial cells of the choroid plexus.

Frequency and age affected

Internationally tumors of the choroid plexus are rare, accounting for 0.4-0.6% of all intracranial neoplasms. It most commonly affects young children under the age of 5 with a mean patient age of 5.2 years.

Signs and symptoms

Signs of the tumor resulting from increased intracranial pressure is present in 91% of patients, with Vomiting, homonymous visual field defects and headache the most common symptoms

Surgical treatment

Choroid plexus papillomas are benign tumors that are usually cured by surgery; malignant progression has been rarely reported.

References

http://www.emedicine.com/radio/topic171.htm

v • d • e Nervous tissue tumors (ICD-O 9350-9589)
Miscellaneous tumors (9350-9379)	Craniopharyngioma - Pinealoma - Chordoma
Glioma (9380-9489)	Gliomatosis cerebri - Oligoastrocytoma - Choroid plexus papilloma - Ependymoma - Astrocytoma (Pilocytic astrocytoma, Glioblastoma multiforme) - Dysembryoplastic neuroepithelial tumour - Oligodendroglioma - Medulloblastoma - Primitive neuroectodermal tumor
Neuroepitheliomatous (9490-9529)	Ganglioneuroma - Neuroblastoma - Atypical teratoid rhabdoid tumor - Retinoblastoma - Esthesioneuroblastoma
Meningiomas (9530-9539)	Meningioma
Nerve sheath tumor (9540-9579)	Neurofibroma (Neurofibrosarcoma, Neurofibromatosis) - Schwannoma - Neurinoma - Acoustic neuroma - Neuroma
see also brain tumors (though not all brain tumors are of nervous tissue)