Cerebral dissection from syringomyelia demonstrated using cine magnetic resonance imaging

2001 ◽  
Vol 94 (2) ◽  
pp. 318-321 ◽  
Author(s):  
June Ho Lee ◽  
Chun-Kee Chung ◽  
Hyun Jib Kim
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chiari I Malformation ◽  
Magnetic Resonance Images ◽  
Resonance Imaging ◽  
Content Type ◽  
Suboccipital Craniectomy ◽  
Upper Cervical ◽  
Chiari I ◽  
Fine Print

✓ A 16-year-old boy presented at the authors' emergency department with a sudden deterioration of respiration. He had been paraparetic for 3 years and had become quadriplegic 2 days previously. Magnetic resonance images revealed a Chiari I malformation and a hydromyelic cavity extending from C-1 to T-11. Rostrally, a small cylindrically shaped lesion extended from the cervicomedullary junction to the left semioval center. The patient made a dramatic neurological recovery following suboccipital craniectomy and upper cervical laminectomies with augmentation duraplasties followed by placement of a syringoperitoneal shunt.

Paroxysmal rage as a presenting symptom of the Chiari I malformation

1999 ◽  
Vol 91 (2) ◽  
pp. 328-329 ◽  
Author(s):  
Roger J. Hudgins
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chiari I Malformation ◽  
Cervical Pain ◽  
Resonance Imaging ◽  
Meningeal Irritation ◽  
Content Type ◽  
Chiari I ◽  
Fine Print ◽  
New Onset

✓ Signs of meningeal irritation including occipital and cervical pain are common in symptomatic children with the Chiari I malformation. The author reports on two children with Chiari I malformations who presented with a previously undescribed symptom presumably caused by intermittent meningeal irritation: paroxysmal rages. In both cases the rages stopped after decompressive surgery. Evaluation including magnetic resonance imaging should be considered in children with new onset of paroxysmal behavioral disorders.

Spontaneous decompression of syringomyelia: magnetic resonance imaging findings

1991 ◽  
Vol 74 (2) ◽  
pp. 283-286 ◽  
Author(s):  
Clifford R. Jack ◽  
Emre Kokmen ◽  
Burton M. Onofrio
Keyword(s):  
Magnetic Resonance ◽  
Complete Resolution ◽  
Chiari I Malformation ◽  
Minimal Change ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Content Type ◽  
Magnetic Resonance Studies ◽  
Chiari I ◽  
Fine Print

✓ The case of a 30-year-old woman with Chiari I malformation and a cervicothoracic syrinx is presented. The patient was followed clinically over a 2½-year period. Spontaneous and complete resolution of the syrinx, as documented by serial magnetic resonance studies, was accompanied by only a minimal change in objective symptomatology.

Percutaneous thecoperitoneal shunt for syringomyelia

1991 ◽  
Vol 74 (5) ◽  
pp. 827-831 ◽  
Author(s):  
Umesh S. Vengsarkar ◽  
Venilal G. Panchal ◽  
Parimal D. Tripathi ◽  
Sushil V. Patkar ◽  
Alok Agarwal ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Clinical Improvement ◽  
Clinical Presentation ◽  
Simple Procedure ◽  
Chiari I Malformation ◽  
Magnetic Resonance Images ◽  
Content Type ◽  
The Third ◽  
Chiari I ◽  
Fine Print

✓ Between January and April, 1990, three consecutive cases of syringomyelia were treated by percutaneous placement of thecoperitoneal shunts. Two of these patients had undergone craniovertebral decompression earlier at other centers and the third was treated primarily by a thecoperitoneal shunt. In each case, the syrinx was associated with Chiari I malformation, although the clinical presentation was due to a myelopathy. All three patients obtained unequivocal benefit from this simple procedure. Postoperative magnetic resonance images showed considerable shrinkage of the cysts corresponding with clinical improvement.

Chiari I malformation with syringomyelia

1988 ◽  
Vol 68 (5) ◽  
pp. 726-730 ◽  
Author(s):  
Ulrich Batzdorf
Keyword(s):  
Magnetic Resonance ◽  
Chiari I Malformation ◽  
Adult Onset ◽  
Thoracic Region ◽  
Content Type ◽  
Suboccipital Craniotomy ◽  
Operative Complications ◽  
Upper Cervical ◽  
Chiari I ◽  
Fine Print

✓ Five patients with a Chiari I-syringomyelia complex of adult onset were evaluated by magnetic resonance (MR) imaging. All patients underwent suboccipital craniotomy with upper cervical (C-1 and part of C-2) laminectomy, arachnoid retraction, and duraplasty. Postoperative MR studies of four patients disclosed collapse of the syringomyelic cavity, even when the cavity extended into the thoracic region. This appeared to be a progressive process taking place over several weeks. Operative complications are noted and physiological implications are discussed.

Evaluating the Effect of Decompression Surgery on Cerebrospinal Fluid Flow and Intracranial Compliance in Patients with Chiari Malformation with Magnetic Resonance Imaging Flow Studies

Neurosurgery ◽  
2004 ◽  
Vol 55 (6) ◽  
pp. 1344-1351 ◽  
Author(s):  
Anusha Sivaramakrishnan ◽  
Noam Alperin ◽  
Sushma Surapaneni ◽  
Terry Lichtor
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebrospinal Fluid ◽  
Magnetic Resonance ◽  
Chiari I Malformation ◽  
Magnetic Resonance Images ◽  
Decompression Surgery ◽  
Intracranial Volume ◽  
Resonance Imaging ◽  
Intracranial Compliance ◽  
Chiari I

Abstract OBJECTIVE: To quantify the effect of decompression surgery on craniocervical junction hydrodynamics and on global intracranial compliance (ICC) in patients with Chiari I malformation by use of magnetic resonance measurements of cerebrospinal fluid and blood flow. Studying the effect of decompression surgery may improve our understanding of the pathophysiological characteristics of Chiari I malformation and aid in identifying patients who will benefit from the procedure. METHODS: Twelve patients were studied with a 1.5-T magnetic resonance imaging scanner before and after decompression surgery. Cine phase contrast magnetic resonance images were used to quantify maximum cord displacement, maximum systolic cerebrospinal fluid velocity and volumetric flow rate, and overall ICC. ICC was derived by use of a previously reported method that measures small changes in intracranial volume and pressure that occur naturally with each cardiac cycle. RESULTS: After surgery, changes were documented both in the local hydrodynamic parameters and in ICC. However, only the change in ICC, an average increase of more than 60%, was statistically significant. Increased ICC, which was associated with improved outcome, was measured in 10 of the 12 patients, no significant change was documented in 1 patient, and decreased ICC was measured in 1 patient whose symptoms persisted after surgery. CONCLUSION: An increase in the overall compliance of the intracranial compartment is the most significant and consistent change measured after decompression surgery. Changes in cord displacement, cerebrospinal fluid velocities, and flow in the craniospinal junction were less consistent and less affected by the operation. Thus, ICC may play an important role in the outcome of decompression surgery related to improving symptoms and restoring normal neurological hydrodynamics in patients with Chiari I malformations.

Optic pathway glioma infiltrating into somatostatinergic pathways in a young boy with gigantism

1994 ◽  
Vol 81 (4) ◽  
pp. 595-600 ◽  
Author(s):  
Thomas J. Manski ◽  
Charles S. Ha worth ◽  
Bertrand J. Duval-Arnould ◽  
Elisabeth J. Rushing
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Optic Pathway Glioma ◽  
Optic Pathway ◽  
Resonance Imaging ◽  
Content Type ◽  
Hyperintense Signal ◽  
Immunocytochemical Studies ◽  
Stereotactic Biopsies ◽  
Fine Print

✓ The authors report gigantism in a 16-month-old boy with an extensive optic pathway glioma infiltrating into somatostatinergic pathways, as revealed by magnetic resonance imaging and immunocytochemical studies. Stereotactic biopsies of areas showing hyperintense signal abnormalities on T2-weighted images in and adjacent to the involved visual pathways provided rarely obtained histological correlation of such areas. The patient received chemotherapy, which resulted in reduction of size and signal intensity of the tumor and stabilization of vision and growth velocity.

Magnetic resonance imaging of spinal arteriovenous malformations

1987 ◽  
Vol 66 (6) ◽  
pp. 830-834 ◽  
Author(s):  
John L. Doppman ◽  
Giovanni Di Chiro ◽  
Andrew J. Dwyer ◽  
Joseph L. Frank ◽  
Edward H. Oldfield
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arteriovenous Malformations ◽  
High Signal ◽  
Resonance Imaging ◽  
Content Type ◽  
Spinal Arteriovenous Malformations ◽  
Magnetic Resonance Imaging Mri ◽  
Spinal Avm ◽  
Fine Print

✓ Magnetic resonance imaging (MRI) was performed on 12 patients with spinal arteriovenous malformations (AVM's). Six lesions were intramedullary, five were dural, and one was in a posterior extramedullary location. Serpentine filling defects similar to the classic myelographic findings were demonstrated within the high-signal cerebrospinal fluid on T2-weighted coronal scans. The intramedullary nidus was identified by MRI as an area of low-signal intensity within the cord in all six intramedullary AVM's. Neither the dural nor the posterior extramedullary lesions showed intramedullary components. It is concluded that MRI may noninvasively provide the initial diagnosis of a spinal AVM and distinguish intramedullary from dural and extramedullary lesions.

De novo Chiari-I Malformation in Infants Demonstrated by Sequential Magnetic Resonance Imaging Scans

1995 ◽  
Vol 22 (6) ◽  
pp. 299-302 ◽  
Author(s):  
Sepideh Amin-Hanjani ◽  
Sumeer Sathi ◽  
Michael Scott
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
De Novo ◽  
Chiari I Malformation ◽  
Resonance Imaging ◽  
Chiari I

Optic nerve ganglioglioma

1993 ◽  
Vol 78 (6) ◽  
pp. 979-982 ◽  
Author(s):  
William Y. Lu ◽  
Marc Goldman ◽  
Byron Young ◽  
Daron G. Davis
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nervous System ◽  
Optic Nerve ◽  
Magnetic Resonance ◽  
Visual Field ◽  
Resonance Imaging ◽  
Optic Nerve Glioma ◽  
Content Type ◽  
Visual Field Deficit ◽  
Fine Print

✓ Gangliogliomas of the optic nerve are extremely rare. The case is reported of a 38-year-old man who presented with a visual field deficit and was discovered to have an optic nerve ganglioglioma. The possible embryological origins of this neoplasm, its histological and immunohistochemical features, and its appearance on magnetic resonance imaging are examined. The prognoses of optic nerve glioma and of gangliogliomas occurring elsewhere in the nervous system are compared.

Correlation of the relationships of brain—tumor interfaces, magnetic resonance imaging, and angiographic findings to predict cleavage of meningiomas

1999 ◽  
Vol 91 (3) ◽  
pp. 384-390 ◽  
Author(s):  
Faruk İldan ◽  
Metin Tuna ◽  
Alp İskender Göcer ◽  
Bülent Boyar ◽  
Hüseyin Bağdatoğlu ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Brain Tumor ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Vascular Supply ◽  
Peritumoral Edema ◽  
Resonance Imaging ◽  
Content Type ◽  
Angiographic Findings ◽  
Fine Print

Object. The authors examined the relationships of brain—tumor interfaces, specific magnetic resonance (MR) imaging features, and angiographic findings in meningiomas to predict tumor cleavage and difficulty of resection.Methods. Magnetic resonance imaging studies, angiographic data, operative reports, clinical data, and histopathological findings were examined retrospectively in this series, which included 126 patients with intracranial meningiomas who underwent operations in which microsurgical techniques were used. The authors have identified three kinds of brain—tumor interfaces characterized by various difficulties in microsurgical dissection: smooth type, intermediate type, and invasive type. The signal intensity on T1-weighted MR images was very similar regardless of the type of brain—tumor interface (p > 0.1). However, on T2-weighted images the different interfaces seemed to correlate very precisely with the signal intensity and the amount of peritumoral edema (p < 0.01), allowing the prediction of microsurgical effort required during surgery. On angiographic studies, the pial—cortical arterial supply was seen to participate almost equally with the meningeal—dural arterial supply in vascularizing the tumor in 57.9% of patients. Meningiomas demonstrating hypervascularization on angiography, particularly those fed by the pial—cortical arteries, exhibited significantly more severe edema compared with those supplied only from meningeal arteries (p < 0.01). Indeed, a positive correlation was found between the vascular supply from pial—cortical arteries and the type of cleavage (p < 0.05).Conclusions. In this analysis the authors proved that there is a strong correlation between the amount of peritumoral edema, hyperintensity of the tumor on T2-weighted images, cortical penetration, vascular supply from pial—cortical arteries, and cleavage of the meningioma. Therefore, the consequent difficulty of microsurgical dissection can be predicted preoperatively by analyzing MR imaging and angiographic studies.

Sign in / Sign up

Export Citation Format

Share Document