The choroids plexus papillomas are rare neoplasms of central nervous system, constituting about 0.5% of intracranial tumors. They are most common in children, especially in the first two year of life. In adult, they usually occur within posterior fossa, but cerebellopontine(CP) angle choroids plexus tumor is extremely rare. The authors report two cases of 4th ventricle and CP angle choroids plexus papilloma in adult.
Adult* ; Central Nervous System ; Cerebellopontine Angle* ; Child ; Choroid Plexus* ; Choroid* ; Humans ; Papilloma ; Papilloma, Choroid Plexus*

Papillomas of the choroid plexus constitute 3.4~3.9 percent of intracranial tumors in childhood, much higher incidence rate than that in adulthood. Although relatively rare, this is an important tumor since it is usually a benign resectable lesion with satisfactory result. It is also an unusually interesting tumor because of its association with a communicating hydrocephalus. Its site of occurrence is also characteristic according to the age, being usually lateral ventricle and rarely the 4th or 3rd ventricle in childhood. We present a case of 4th ventricle choroid plexus papilloma in a child with its characteristic CT finding.
Child* ; Choroid Plexus* ; Choroid* ; Humans ; Hydrocephalus ; Incidence ; Lateral Ventricles ; Papilloma ; Papilloma, Choroid Plexus*

Choroid plexus papillomas are uncommon neoplasms of the central nervous system, accounting for 0.4% to 0.1% of all intracranial tumors. We present a choroid plexus papilloma in the trigone of the lateral ventricle in an 8 months old infant with hydrocephalus. We successfully controlled hydrocephalus and subdural fluid collection after total removal of the mass.
Central Nervous System ; Choroid Plexus* ; Choroid* ; Humans ; Hydrocephalus ; Infant* ; Lateral Ventricles* ; Papilloma, Choroid Plexus* ; Subdural Effusion

The choroid plexus papillomas are uncommon neoplasms of the central nervous system, and constitute 0.5~0.6 percent of intracranial tumors. These tumor are surgically treatable and the encouraging results of surgical removal justify an aggeressive surgical approach. We present a case of lateral ventricle choroid plexus papilloma in a child with communicating hydrocephalus.
Central Nervous System ; Child* ; Choroid Plexus* ; Choroid* ; Humans ; Hydrocephalus ; Lateral Ventricles* ; Papilloma, Choroid Plexus*

A case of primary choroid plexus papilloma of the cerebellopontine angle with spinal leptomengeal seeding is reported, and the literature pertinent to this subject reviewed. CT scan revealed a well-demarcated elliptical homogeneousely high density lesion with definite contrast enhancement within right cerebellopontine angle, which could hardly be differentiated from that of acoustic neurinoma.
Cerebellopontine Angle* ; Choroid Plexus* ; Choroid* ; Neuroma, Acoustic ; Papilloma, Choroid Plexus* ; Tomography, X-Ray Computed

The case of a 6-month-old male infant with a choroid plexus papilloma showing unusual features is presented. This case is very unusual because the tumor did not have any connection with the choroid plexus but was attached to the normal brain parenchyme, encapsulated with thick hyalinized membrane and surrounded with large multi-septated cyst. At the surgery, it was confirmed that the tumor was in fact located at the right temporal lobe without having any connection to the normal choroid plexus and surrounding cyst was not lateral ventricle. Histopathological examination revealed a choroid plexus papilloma. We present this unusual case of choroid plexus papilloma with review of literature. Also, the pathogenesis of the tumor capsule and surrounding cyst is discussed.
Brain ; Choroid Plexus* ; Choroid* ; Humans ; Hyalin ; Infant ; Lateral Ventricles ; Male ; Membranes ; Papilloma, Choroid Plexus* ; Temporal Lobe

A retrospective analysis of five adult patients with choroid plexus tumor(four choroids plexus papillomas, one choroids plexus carcinoma who underwent surgical resection at our institute between February 1991 and October 1995 was performed. The study group included two males and three females with a mean age of 34.0 years(range 21 to 24 years). Two of four choroids plexus papillomas were removed gross totally and one of these was irradiated postoperatively. The remaining two patients with choroids plexus papilloma underwent a subtotal surgical resection and one of them received radiation therapy. During follow-up, the authors could not find any difference in the size of the residual tumor or in the patient's KPS between the irradiated groups. There was also no response to postoperative radiation therapy in a patient with choroids plexus carcinoma who underwent a subtotal resection. The author's clinical experiences suggest that the use of radiation therapy in adult patients with choroids plexus tumor is not effective, and thus gross total resection should be attempted during the primary operation of such tumors.
Adult* ; Choroid Plexus Neoplasms* ; Choroid Plexus* ; Choroid* ; Female ; Follow-Up Studies ; Humans ; Male ; Neoplasm, Residual ; Papilloma ; Papilloma, Choroid Plexus ; Retrospective Studies

The authors present a case of huge atypical choroid plexus papilloma in both lateral and third ventricles. A 2-year-old girl presented with lethargy and vomiting. Magnetic resonance images disclosed a huge enhancing mass, which probably arose from the left lateral ventricle and extended to the right lateral and the third ventricles. Total removal of the mass via the interhemispheric transcallosal approach was done. Histologically, an atypical choroid plexus papilloma was identified. Second operative treatment, subduro-peritoneal shunt, was performed due to postoperative subdural effusion. The patient was discharged two weeks after the second surgical procedure without a neurological deficit.
Child, Preschool ; Choroid Plexus* ; Choroid* ; Female ; Humans ; Lateral Ventricles ; Lethargy ; Papilloma, Choroid Plexus* ; Subdural Effusion ; Third Ventricle ; Vomiting

Choroid plexus papilloma is a very rare disease in children. The manifestations of the disease differ according to the tumor size and the location. Increased CSF production by the tumor, hydrocephalus and symptoms of increased ICP are the main symptoms. The first line of treatment is surgical excision, but sometimes excision itself is very difficult due to the site and the size of the mass. Adjunctive radiation therapy or chemotherapy is not recommended. Since gross total resection without adjunctive therapy offers highest likelihood of success. Significant prognostic factors are sex, age, time of diagnosis, the duration between the appearance of symptoms and diagnosis, tumor volume, tumor site and the extent of surgery. We report a case of choroid plexus papilloma, in a child with anorexia and failure to thrive.
Anorexia* ; Child* ; Choroid Plexus* ; Choroid* ; Diagnosis ; Drug Therapy ; Failure to Thrive* ; Humans ; Hydrocephalus ; Papilloma, Choroid Plexus* ; Rare Diseases ; Tumor Burden

Transient mutism has ben known as a rare complication following a posterior fossa approach to cerebellar tumors, although its pathophysiology remains unclear. Cerebellar mutism may be defined as a transient mutism occurring after a posterior fossa tumor approach in children with unimpaired consciousness, unimpaired symbolic functions, no detectable deficit of cranial nerves or peripheral organs of speech, and no lesions of long pathways in the course of the cranial nerves at the level of the brain stem. Forty two cases in children, and only two cases in adults have been found in the literature. We report a case of transient mutism with oropharyngeal apraxia after total excision of 4th ventricle choroids plexus papilloma in a 6-year-old girl. Postoperatively, the patient became mute and refused food intake without disturbance of consciousness, or lower cranial nerve function. Computed tomography(CT) and magnetic resonance image(MRI) demonstrated no abnormal findings except the surgical lesion in the posterior fossa. The mutism lasted for 3 weeks, but she gradually became fluent. The mechanism of "cerebellar mutism" is briefly discussed with literature review.
Adult ; Apraxias ; Brain Stem ; Cerebellar Neoplasms ; Child* ; Choroid Plexus* ; Choroid* ; Consciousness ; Cranial Nerves ; Eating ; Female* ; Humans ; Infratentorial Neoplasms ; Mutism* ; Papilloma ; Papilloma, Choroid Plexus*