Surgical removal of bilateral papillomas of the choroid plexus of the lateral ventricles with resolution of hydrocephalus

1979 ◽  
Vol 50 (5) ◽  
pp. 677-681 ◽  
Author(s):  
Steven K. Gudeman ◽  
Humbert G. Sullivan ◽  
Michael J. Rosner ◽  
Donald P. Becker
Keyword(s):  
Cerebrospinal Fluid ◽  
Choroid Plexus ◽  
Large Volume ◽  
Surgical Removal ◽  
Tumor Removal ◽  
Content Type ◽  
Lateral Ventricles ◽  
Csf Diversion ◽  
Csf Production ◽  
Fine Print

✓ The authors report a patient with bilateral papillomas of the choroid plexus of the lateral ventricles with documentation of cerebrospinal fluid (CSF) hypersecretion causing hydrocephalus. Special attention is given to the large volume of CSF produced by these tumors (removal of one tumor reduced CSF outflow by one-half) and to the fact that CSF diversion was not required after both tumors were removed. Since tumor removal alone was sufficient to stop the progression of hydrocephalus, we feel that this case supports the concept that elevated CSF production by itself is sufficient to cause hydrocephalus in patients with papillomas of the choroid plexus.

Hydrocephalus due to villous hypertrophy of the choroid plexus in the lateral ventricles

1994 ◽  
Vol 80 (2) ◽  
pp. 321-323 ◽  
Author(s):  
Hirofumi Hirano ◽  
Kazuho Hirahara ◽  
Tetsuhiko Asakura ◽  
Tetsuro Shimozuru ◽  
Koki Kadota ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Mental Retardation ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Choroid Plexus ◽  
Ventriculoperitoneal Shunt ◽  
Rare Case ◽  
Content Type ◽  
Lateral Ventricles ◽  
Fine Print

✓ A case is reported of hydrocephalus due to overproduction of cerebrospinal fluid (CSF) caused by villous hypertrophy of the choroid plexus in the lateral ventricles. A 7-year-old girl with mental retardation developed gait disturbance; hydrocephalus and a Dandy-Walker cyst were detected on computerized tomography. She was initially treated with a ventriculoperitoneal shunt; however, shunting failed to control the hydrocephalus. The excessive outflow of CSF suggested choroid plexus abnormality, and magnetic resonance (MR) imaging revealed enlargement of the choroid plexus in both lateral ventricles. The patient was therefore diagnosed as having hydrocephalus induced by overproduction of CSF, which was controlled by resection of the choroid plexus. Histological examination showed the structure typical of normal choroid plexus. This is a rare case of villous hypertrophy of the choroid plexus in which MR imaging assisted in the diagnosis.

Hydrocephalus secondary to diffuse villous hyperplasia of the choroid plexus

1996 ◽  
Vol 85 (4) ◽  
pp. 689-691 ◽  
Author(s):  
Gavin W. Britz ◽  
D. Kyle Kim ◽  
John D. Loeser
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebrospinal Fluid ◽  
Choroid Plexus ◽  
Resonance Imaging ◽  
Ventriculoatrial Shunt ◽  
Content Type ◽  
Tomography Scanning ◽  
Csf Production ◽  
Choroid Plexus Papillomas ◽  
Fine Print

✓ Diffuse villous hyperplasia of the choroid plexus, which is distinct from bilateral choroid plexus papillomas, is extremely rare and is often associated with hydrocephalus due to the overproduction of cerebrospinal fluid (CSF). The authors describe an infant with hydrocephalus, diagnosed by computerized tomography scanning, who developed ascites following placement of a ventriculoperitoneal shunt and, subsequently, demonstrated excessive CSF production when the shunt was externalized. The patient was later successfully treated by placement of a ventriculoatrial shunt. Magnetic resonance imaging demonstrated diffuse villous hyperplasia of the choroid plexus as the cause of the patient's hydrocephalus. The literature on diffuse villous hyperplasia of the choroid plexus is reviewed.

Congenital hydrocephalus due to villous hypertrophy of the telencephalic choroid plexuses

1983 ◽  
Vol 59 (1) ◽  
pp. 172-175 ◽  
Author(s):  
Keasley Welch ◽  
Roy Strand ◽  
Michael Bresnan ◽  
Valeria Cavazzuti
Keyword(s):  
Cerebrospinal Fluid ◽  
Choroid Plexus ◽  
Computerized Tomography ◽  
Unique Feature ◽  
Surgical Removal ◽  
Newborn Period ◽  
Content Type ◽  
Ventriculoperitoneal Shunting ◽  
Choroid Plexuses ◽  
Fine Print

✓ A case of villous hypertrophy or bilateral papilloma of the choroid plexus of the lateral ventricles is reported. The child exhibited known features associated with overproduction of cerebrospinal fluid, hydrocephalus that was difficult to control, ascites after ventriculoperitoneal shunting, and relief after surgical removal of the papillomatous tissue. A unique feature is the complexity of the telencephalic choroid plexuses as shown by computerized tomography and ultrasound in the newborn period.

Formation of cerebrospinal fluid

1975 ◽  
Vol 42 (6) ◽  
pp. 665-673 ◽  
Author(s):  
Michael Pollay
Keyword(s):  
Cerebrospinal Fluid ◽  
Choroid Plexus ◽  
Water Flow ◽  
Structural Basis ◽  
Content Type ◽  
Flux Chambers ◽  
Fine Print

✓ After a brief summary of current views on the origin of cerebrospinal fluid (CSF) and the processes underlying its elaboration, the author discusses studies of isolated choroid plexus in extracorporeal perfusion systems and flux chambers. The results suggest that transependymal water flow is secondary to the electrically silent pumping of sodium. The author presents evidence in support of the standing gradient hypothesis as the structural basis of CSF secretion.

The effect of dexamethasone phosphate on the production rate of cerebrospinal fluid in the spinal subarachnoid space of dogs

1973 ◽  
Vol 39 (4) ◽  
pp. 480-484 ◽  
Author(s):  
Osamu Sato ◽  
Makoto Hara ◽  
Takehiko Asai ◽  
Ryuichi Tsugane ◽  
Naoki Kageyama
Keyword(s):  
Cerebrospinal Fluid ◽  
Production Rate ◽  
Subarachnoid Space ◽  
Content Type ◽  
Spinal Subarachnoid Space ◽  
Dexamethasone Phosphate ◽  
Maximal Reduction ◽  
Csf Production ◽  
Fine Print

✓ The effect of intravenous dexamethasone on cerebrospinal fluid (CSF) production was studied in dogs by a method of caudocephalad perfusion of the spinal subarachnoid space with an inulin-containing buffer. The CSF production rate began to reduce immediately after the injection of 0.15 mg/kg and attained a maximal reduction of 50% in 50 minutes.

Effect of systemic arterial hypotension on the rate of cerebrospinal fluid formation in dogs

1974 ◽  
Vol 41 (3) ◽  
pp. 350-355 ◽  
Author(s):  
Michael E. Carey ◽  
A. Richard Vela
Keyword(s):  
Blood Pressure ◽  
Cerebrospinal Fluid ◽  
Mean Arterial Blood Pressure ◽  
Content Type ◽  
Arterial Blood ◽  
Ventriculocisternal Perfusion ◽  
Fluid Formation ◽  
The Mean ◽  
Csf Production ◽  
Fine Print

✓The rate of cerebrospinal fluid (CSF) production in dogs was measured by ventriculocisternal perfusion with artificial CSF containing inulin. In normotensive animals, the average CSF production was 36 ± 6 µl/min. When the mean arterial blood pressure was reduced to 62 ± 1 mm Hg, the CSF production fell to 22 ± 5 µl/min, a 39% reduction in fluid formation. The authors briefly discuss various hypotheses to explain this reduction.

Downregulation of cerebrospinal fluid production in patients with chronic hydrocephalus

2002 ◽  
Vol 97 (6) ◽  
pp. 1271-1275 ◽  
Author(s):  
Gerald D. Silverberg ◽  
Stephen Huhn ◽  
Richard A. Jaffe ◽  
Steven D. Chang ◽  
Thomas Saul ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Production Rate ◽  
Ventricular Catheter ◽  
Chronic Hydrocephalus ◽  
Production Rates ◽  
Normal Range ◽  
Content Type ◽  
Fluid Production ◽  
Csf Production ◽  
Fine Print

Object. The goal of this study was to determine the effect of hydrocephalus on cerebrospinal fluid (CSF) production rates in patients with acute and chronic hydrocephalus. Methods. The authors studied CSF production both in patients presenting with acute and chronic hydrocephalus, and patients with Parkinson disease (PD) of a similar mean age, whose CSF production was known to be normal. A modification of the Masserman method was used to measure CSF production through a ventricular catheter. The CSF production rates (means ± standard deviations) in the three groups were then compared. The patients with PD had a mean CSF production rate of 0.42 ± 0.13 ml/minute; this value lies within the normal range measured using this technique. Patients with acute hydrocephalus had a similar CSF production rate of 0.4 ± 0.13 ml/minute, whereas patients with chronic hydrocephalus had a significantly decreased mean CSF production rate of 0.25 ± 0.08 ml/minute. Conclusions. The authors postulate that chronic increased intracranial pressure causes downregulation of CSF production.

Transoral transclival removal of a schwannoma anterior to the craniocervical junction

1985 ◽  
Vol 62 (2) ◽  
pp. 293-295 ◽  
Author(s):  
H. Alan Crockard ◽  
Robert Bradford
Keyword(s):  
Cerebrospinal Fluid ◽  
Simple Technique ◽  
Standard Procedure ◽  
Craniocervical Junction ◽  
Fistula Formation ◽  
Content Type ◽  
Csf Fistula ◽  
Watertight Closure ◽  
Csf Diversion ◽  
Fine Print

✓ The transoral route was used to remove a schwannoma situated anteriorly at the craniocervical junction. By a relatively simple technique, a watertight closure of the dura and nasopharynx was obtained combined with continuous cerebrospinal fluid (CSF) diversion, first by lumbar drainage and then via a lumboperitoneal shunt. This modification of the standard procedure provides a useful method to prevent CSF fistula formation following transoral intradural surgery.

Autoradiographic assessment of choroid plexus blood flow and glucose utilization in the unanesthetized rat

1982 ◽  
Vol 57 (4) ◽  
pp. 543-547 ◽  
Author(s):  
George Tyson ◽  
Paul Kelly ◽  
James McCulloch ◽  
Graham Teasdale
Keyword(s):  
Blood Flow ◽  
Choroid Plexus ◽  
Functional Activity ◽  
Fourth Ventricle ◽  
Glucose Utilization ◽  
Ventricular System ◽  
Content Type ◽  
Lateral Ventricles ◽  
Fine Print

✓ Choroid plexus blood flow (CPBF) and glucose utilization (CPGU) were measured in two groups, each of seven identically prepared, unanesthetized rats, using complementary quantitative autoradiographic techniques. Both CPBF and CPGU were lowest in the lateral ventricles (0.83 ± 0.01 ml · g−1 · min−1 and 0.70 ± 0.02 µmoles · g−1 · min−1, respectively) and highest in the fourth ventricle (1.56 ± 0.05 ml · g−1 · min−1 and 1.39 ± 0.05 µmoles · g−1 · min−1, respectively). Despite this heterogeneity, the proportionate relationship between CPBF and CPGU was relatively constant throughout the ventricular system. This suggests that blood flow and metabolism may normally be coupled in the choroid plexus, and that the choroid plexus of the fourth ventricle may account for a disproportionate share of the functional activity of this tissue.

Selective radionecrosis of the choroid plexus for control of experimental hydrocephalus

1972 ◽  
Vol 36 (3) ◽  
pp. 270-275 ◽  
Author(s):  
Martin H. Weiss ◽  
Frank E. Nulsen ◽  
Benjamin Kaufman
Keyword(s):  
Cerebrospinal Fluid ◽  
Choroid Plexus ◽  
Intraventricular Pressure ◽  
Pathological Changes ◽  
Content Type ◽  
Cerebrospinal Fluid Flow ◽  
Experimental Hydrocephalus ◽  
Gamma Scanning ◽  
Diffuse Distribution ◽  
Fine Print

✓ Hydrocephalic dogs treated with intraventricular radioactive colloidal gold showed a sustained decrease in cerebrospinal fluid flow and intraventricular pressure associated with a reversal of progressive hydrocephalus. Gamma scanning and isotopic sampling, however, indicated a more diffuse distribution of the isotope than previously thought, although pathological changes up to 7 weeks post-instillation of the radioactive colloid appeared confined to the choroid plexus.

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