Choroid plexus papilloma
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Choroid plexus papilloma Classification and external resources 
ICD-10 C71.5 ICD-9 191.5 ICD-O: M9390/1 eMedicine radio/171 MeSH D020288 A Choroid plexus papilloma (CPP) is a rare, slow-growing, histologically benign intracranial neoplasm or tumor that is commonly located in the ventricular system of the choroid plexus.[1] It may obstruct the cerebrospinal fluid flow, causing increased intracranial pressure.
Contents
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 are present in 91% of patients, with vomiting, homonymous visual field defects and headache being the most common symptoms.
Surgical treatment
Choroid plexus papillomas are benign tumors that are usually cured by surgery; malignant progression has been rarely reported.
See also
Media related to Choroid plexus papilloma at Wikimedia CommonsAdditional images
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Micrograph of a choroid plexus papilloma. H&E stain.
References
- ^ McEvoy AW, Harding BN, Phipps KP, et al. (April 2000). "Management of choroid plexus tumours in children: 20 years experience at a single neurosurgical centre". Pediatr Neurosurg 32 (4): 192–9. doi:10.1159/000028933. PMID 10940770. http://content.karger.com/produktedb/produkte.asp?typ=fulltext&file=pne32192.
External links
- Choroid Plexus Papilloma MRI, CT, and pathology images from MedPix
Nervous tissue tumors/NS neoplasm/Neuroectodermal tumor (ICD-O 9350–9589) (C70–C72, D32–D33, 191–192/225) Endocrine/
sellar (9350–9379)other: PinealomaCNS
(9380–9539)Astrocytoma (Pilocytic astrocytoma, Pleomorphic xanthoastrocytoma, Fibrillary (also diffuse or lowgrade) astrocytomas, Anaplastic astrocytoma, Glioblastoma multiforme)Ependymoma · SubependymomaChoroid plexus tumor (Choroid plexus papilloma, Choroid plexus carcinoma)Multiple/unknownMature
neuronNeuroblastoma (Esthesioneuroblastoma, Ganglioneuroblastoma) · Medulloblastoma · Atypical teratoid rhabdoid tumorPrimitiveMeningiomas
(meninges)HematopoieticPNS: NST
(9540–9579)cranial and paraspinal nerves: Neurofibroma (Neurofibrosarcoma, Neurofibromatosis) · Neurilemmoma/Schwannoma (Acoustic neuroma) · Malignant peripheral nerve sheath tumornote: not all brain tumors are of nervous tissue, and not all nervous tissue tumors are in the brain (see brain metastases)
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