Malignant intraventricular schwannoma

1995 ◽  
Vol 82 (1) ◽  
pp. 121-124 ◽  
Author(s):  
Jin-Myung Jung ◽  
Hyung-Jin Shin ◽  
Je G. Chi ◽  
In Sung Park ◽  
Eun Sang Kim ◽  
...  
Keyword(s):  
Lateral Ventricle ◽  
Malignant Schwannoma ◽  
Pathological Features ◽  
Content Type ◽  
The Right ◽  
Subtotal Removal ◽  
Fine Print

✓ The authors present the clinical, radiological, and pathological features of a malignant schwannoma occurring in the right lateral ventricle of a 40-year-old man. Metastasis to both cerebellopontine angles and to the cerebellum was found 7 months after subtotal removal of the tumor.

Malignant intracerebral nerve sheath tumor with intratumoral calcification

2000 ◽  
Vol 92 (2) ◽  
pp. 338-341 ◽  
Author(s):  
Minoru Tanaka ◽  
Soichiro Shibui ◽  
Kazuhiro Nomura ◽  
Yukihiro Nakanishi ◽  
Tadashi Hasegawa ◽  
...  
Keyword(s):  
Nerve Sheath Tumor ◽  
Pathological Features ◽  
Resonance Imaging ◽  
Content Type ◽  
Nerve Sheath ◽  
First Case ◽  
The Right ◽  
Tomography Scanning ◽  
Considerable Enhancement ◽  
Fine Print

✓ The authors present the clinical, radiological, and pathological features of a malignant intracerebral nerve sheath tumor that occurred in the right parietooccipital lobe of a 4-year-old girl. Computerized tomography scanning and magnetic resonance imaging demonstrated a 5 × 5 × 4—cm multiloculated mass with considerable enhancement of the irregularly shaped septa and clearly calcified areas within the mass. Among five cases reported in the literature, this patient is the youngest and represents the first case in which there is radiological evidence of intratumoral calcification.

Multiple choroid plexus papillomas of the lateral ventricle distinct from villous hypertrophy

1998 ◽  
Vol 88 (3) ◽  
pp. 581-585 ◽  
Author(s):  
Atsuo Yoshino ◽  
Yoichi Katayama ◽  
Takao Watanabe ◽  
Jun Kurihara ◽  
Shigeyoshi Kimura
Keyword(s):  
Choroid Plexus ◽  
Lateral Ventricle ◽  
The Other ◽  
Review Of The Literature ◽  
Resonance Imaging ◽  
Content Type ◽  
Left Lateral Ventricle ◽  
The Right ◽  
Choroid Plexus Papillomas ◽  
Fine Print

✓ Except for villous hypertrophy of the choroid plexus that may not be true tumors, multiple choroid plexus papillomas are extremely rare. The authors report a case involving multiple choroid plexus papillomas that were distinct from villous hypertrophy. These lesions were localized, one in the atrium of the right lateral ventricle and the other in the inferior horn of the left lateral ventricle. A review of the literature revealed that this case represented the first reported case of true multiple choroid plexus papillomas documented by findings on magnetic resonance imaging.

Posterior fossa xanthogranuloma

1979 ◽  
Vol 51 (5) ◽  
pp. 718-722 ◽  
Author(s):  
Jesús Vaquero ◽  
Guillermo Leunda ◽  
José M. Cabezudo ◽  
Manuel de Juan ◽  
José Herrero ◽  
...  
Keyword(s):  
Choroid Plexus ◽  
Computerized Tomography ◽  
Posterior Fossa ◽  
Lateral Ventricle ◽  
Content Type ◽  
Similar Density ◽  
The Right ◽  
Fine Print

✓ A large subdural xanthogranuloma was removed from the posterior fossa of a 53-year-old woman with symptoms of Hand-Schüller-Christian disease. Two additional masses with similar density on computerized tomography were found in the hypothalamus and in the choroid plexus of the right lateral ventricle.

Intracranial sparganosis: an uncommon infection

1984 ◽  
Vol 60 (6) ◽  
pp. 1282-1286 ◽  
Author(s):  
Karl Anders ◽  
Kevin Foley ◽  
W. Eugene Stern ◽  
W. Jann Brown
Keyword(s):  
United States ◽  
Lower Extremity ◽  
Parietal Lobe ◽  
The United States ◽  
Pathological Features ◽  
Content Type ◽  
First Case ◽  
The Right ◽  
Clinical And Pathological Features ◽  
Fine Print

✓ The first case of intracranial sparganosis to be reported from the United States is presented. The patient, a 27-year-old woman, complained of focal seizures involving the right lower extremity. A left parietal parasagittal craniotomy was performed, and a granuloma containing a sparganum was excised from the parietal lobe. The clinical and pathological features of sparganosis are reviewed. Only five cases of intracranial sparganosis have previously been described.

Benign astrocytoma associated with arteriovenous malformation

1971 ◽  
Vol 35 (2) ◽  
pp. 229-233 ◽  
Author(s):  
Reid R. Heffner ◽  
Robert S. Porro ◽  
Michael D. F. Deck
Keyword(s):  
Nervous System ◽  
Arteriovenous Malformation ◽  
Frontal Lobe ◽  
Vascular Malformations ◽  
Pathological Features ◽  
Primary Tumors ◽  
Content Type ◽  
Multiple Primary ◽  
The Right ◽  
Fine Print

✓ An arteriovenous malformation associated with an underlying benign astrocytoma of the right frontal lobe is reported and the radiological and pathological features discussed. Previous reports of multiple primary tumors of the nervous system are reviewed and the few cases of vascular malformations associated with gliomas noted.

Choroid plexus cyst of the lateral ventricle in an elderly man

1984 ◽  
Vol 60 (2) ◽  
pp. 435-437 ◽  
Author(s):  
Shizuo Hatashita ◽  
Suguru Takagi ◽  
Tokiwa Sakakibara
Keyword(s):  
Choroid Plexus ◽  
Lateral Ventricle ◽  
Focal Epilepsy ◽  
Review Of The Literature ◽  
Total Removal ◽  
Content Type ◽  
The Right ◽  
Choroid Plexus Cyst ◽  
Fine Print ◽  
Subsequent Disappearance

✓ The authors report a case of a symptomatic choroid plexus cyst located in the right lateral ventricle of a 64-year-old man who presented with focal epilepsy. The cyst was diagnosed by computerized tomography, and was proven pathologically at surgery. Total removal was accomplished, with subsequent disappearance of the seizures. A brief review of the literature is included.

Intraventricular varix causing hemorrhage

1988 ◽  
Vol 68 (3) ◽  
pp. 472-473 ◽  
Author(s):  
José M. Roda ◽  
José Bencosme ◽  
Alberto Isla ◽  
Martín G. Blázquez
Keyword(s):  
Lateral Ventricle ◽  
Content Type ◽  
The Right ◽  
Subarachnoid Hemorrhages ◽  
Fine Print

✓ A case of a cerebrovascular varix located in the right lateral ventricle is reported. The patient suffered intraventricular and subarachnoid hemorrhages. The intraventricular varix was coagulated and excised.

Acinar choroid plexus adenoma

1970 ◽  
Vol 33 (5) ◽  
pp. 587-590 ◽  
Author(s):  
Richard L. Davis ◽  
Gerald E. Fox
Keyword(s):  
Choroid Plexus ◽  
Lateral Ventricle ◽  
Content Type ◽  
Cystic Tumors ◽  
Complications Of Surgery ◽  
The Right ◽  
Relationship Of ◽  
The Relationship ◽  
Symptoms And Signs ◽  
Fine Print

✓ Mucin-producing cystic tumors of the choroid plexus are rare and most are papillomas or carcinomas. An acinar choroid plexus adenoma of the right lateral ventricle is described. Symptoms and signs included headache, vomiting, papilledema, and a gait disturbance. The neoplasm was located with ventriculography and totally removed, but the patient died of complications of surgery. The relationship of this tumor to others arising in the choroid plexus is discussed.

Malignant astrocytoma following radiotherapy of a craniopharyngioma

1978 ◽  
Vol 48 (4) ◽  
pp. 622-627 ◽  
Author(s):  
Richard L. Sogg ◽  
Sarah S. Donaldson ◽  
Craig H. Yorke
Keyword(s):  
Experimental Evidence ◽  
Temporal Lobe ◽  
Malignant Astrocytoma ◽  
Content Type ◽  
Suprasellar Region ◽  
The Right ◽  
Fine Print

✓ A 9-year-old schoolgirl received 6007 rads to the suprasellar region for craniopharyngioma. Five years later, a malignant astrocytoma developed in the right temporal lobe. We cite clinical and experimental evidence to support our suspicion that the glioma may have been induced by radiation.

A new rat model of chronic cerebral hypoperfusion associated with arteriovenous malformations

2002 ◽  
Vol 97 (5) ◽  
pp. 1198-1202 ◽  
Author(s):  
Jian Hai ◽  
Meixiu Ding ◽  
Zhilin Guo ◽  
Bingyu Wang
Keyword(s):  
Electron Microscopy ◽  
Animal Model ◽  
Arteriovenous Malformations ◽  
Perfusion Pressure ◽  
Chronic Cerebral Hypoperfusion ◽  
Cerebral Hypoperfusion ◽  
Model Group ◽  
Content Type ◽  
The Right ◽  
Fine Print

Object. A new experimental model of chronic cerebral hypoperfusion was developed to study the effects of systemic arterial shunting and obstruction of the primary vessel that drains intracranial venous blood on cerebral perfusion pressure (CPP), as well as cerebral pathological changes during restoration of normal perfusion pressure. Methods. Twenty-four Sprague—Dawley rats were randomly assigned to either a sham-operated group, an arteriovenous fistula (AVF) group, or a model group (eight rats each). The animal model was readied by creating a fistula through an end-to-side anastomosis between the right distal external jugular vein (EJV) and the ispilateral common carotid artery (CCA), followed by ligation of the left vein draining the transverse sinus and bilateral external carotid arteries. Systemic mean arterial pressure (MAP), draining vein pressure (DVP), and CPP were monitored and compared among the three groups preoperatively, immediately postoperatively, and again 90 days later. Following occlusion of the fistula after a 90-day interval, blood—brain barrier (BBB) disruption and water content in the right cortical tissues of the middle cerebral artery territory were confirmed and also quantified with transmission electron microscopy. Formation of a fistula resulted in significant decreases in MAP and CPP, and a significant increase in DVP in the AVF and model groups. Ninety days later, there were still significant increases in DVP and decreases in CPP in the model group compared with the other groups (p < 0.05). Damage to the BBB and brain edema were noted in animals in the model group during restoration of normal perfusion pressure by occlusion of the fistula. Electron microscopy studies revealed cerebral vasogenic edema and/or hemorrhage in various amounts, which correlated with absent astrocytic foot processes surrounding some cerebral capillaries. Conclusions. The results demonstrated that an end-to-side anastomosis between the distal EJV and CCA can induce a decrease in CPP, whereas a further chronic state of cerebral hypoperfusion may be caused by venous outflow restriction, which is associated with perfusion pressure breakthrough. This animal model conforms to the basic hemodynamic characteristics of human cerebral arteriovenous malformations.

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