Kinematic Magnetic Resonance Imaging of a Thoracic Spinal Extradural Arachnoid Cyst: An Alternative Suggestion for Exacerbation of Symptoms During Straining

Spine ◽  
2003 ◽  
Vol 28 (12) ◽  
pp. E229-E233 ◽  
Author(s):  
Minoru Doita ◽  
Kotaro Nishida ◽  
Jyuichi Miura ◽  
Toru Takada ◽  
Masahiro Kurosaka ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arachnoid Cyst ◽  
Resonance Imaging ◽  
Thoracic Spinal ◽  
Alternative Suggestion ◽  
Kinematic Magnetic Resonance Imaging ◽  
Exacerbation Of Symptoms ◽  
Extradural Arachnoid Cyst

Paraplegia after a Routine Lumbar Laminectomy: Report of a Rare Complication and Successful Management

Neurosurgery ◽  
1990 ◽  
Vol 27 (4) ◽  
pp. 638-640 ◽  
Author(s):  
Patrick L. Valls ◽  
Gill L. Naul ◽  
Steven L. Kanter
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Spinal Cord ◽  
Cerebrospinal Fluid ◽  
Magnetic Resonance ◽  
Arachnoid Cyst ◽  
Spinal Canal ◽  
Rare Complication ◽  
Resonance Imaging ◽  
Thoracic Spinal

Abstract Arachnoid cysts of the spinal canal are relatively common lesions that may be either intra- or extradural. These cysts are usually asymptomatic but may produce symptoms by compressing the spinal cord or nerve roots. We report a case in which an intradural thoracic arachnoid cyst became symptomatic after a routine decompressive lumbar laminectomy for spinal stenosis. Myelography revealed no abnormality, although magnetic resonance imaging and computed tomography after myelography demonstrated a mass within the posterior aspect of the thoracic spinal canal associated with anterior displacement and compression of the spinal cord. A change in the flow dynamics of the cerebrospinal fluid probably allowed the development of spinal cord compression due to one of the following: expansion of the cyst, decreased cerebrospinal fluid buffer between the cord and the cyst, or epidural venous engorgement. A concomitant and more cephalad lesion such as an arachnoid cyst should be considered when myelopathic complications arise after lumbar surgery. Magnetic resonance imaging and computed tomography after myelography are useful to demonstrate the additional pathological processes.

Detection of a Dural Defect by Cinematic Magnetic Resonance Imaging and Its Selective Closure as a Treatment for a Spinal Extradural Arachnoid Cyst

Spine ◽  
2004 ◽  
Vol 29 (19) ◽  
pp. E426-E430 ◽  
Author(s):  
Masashi Neo ◽  
Takashi Koyama ◽  
Takeshi Sakamoto ◽  
Shunsuke Fujibayashi ◽  
Takashi Nakamura
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arachnoid Cyst ◽  
Dural Defect ◽  
Resonance Imaging ◽  
Extradural Arachnoid Cyst

Expansive duraplasty for the treatment of spinal extradural arachnoid cysts

2006 ◽  
Vol 4 (3) ◽  
pp. 251-255 ◽  
Author(s):  
Ken-ichiro Kikuta ◽  
Masato Hojo ◽  
Masanori Gomi ◽  
Nobuo Hashimoto ◽  
Kazuhiko Nozaki
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arachnoid Cyst ◽  
Complete Resolution ◽  
Complete Resection ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Dural Sac ◽  
Preoperative Magnetic Resonance ◽  
Extradural Arachnoid Cyst

✓ The authors report the case of a 25-year-old man with a thoracolumbar extradural arachnoid cyst who underwent expansive duraplasty. Symptoms, preoperative magnetic resonance imaging features, and intraoperative findings suggested the involvement of entrapment neuropathy in the manifestation of symptoms. To the authors’ knowledge, this case represents the first evidence that expansive duraplasty can achieve complete resolution of the symptoms in a patient with a spinal extradural arachnoid cyst. The results indicate that duraplasty may be an alternative option in cases in which complete resection of the lesion is difficult and widening of the dural sac is necessary at surgery.

Spinal Cord Herniation Associated with an Intradural Spinal Arachnoid Cyst Diagnosed by Magnetic Resonance Imaging

Neurosurgery ◽  
1991 ◽  
Vol 29 (1) ◽  
pp. 137-139 ◽  
Author(s):  
Toyohiko Isu ◽  
Takashi Iizuka ◽  
Yoshinobu Iwasaki ◽  
Masafumi Nagashima ◽  
Minoru Akino ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Arachnoid Cyst ◽  
Neurological Dysfunction ◽  
Magnetic Resonance Imaging Scan ◽  
Resonance Imaging ◽  
Spinal Cord Herniation ◽  
Spinal Arachnoid Cyst ◽  
Extradural Arachnoid Cyst

Abstract Two rare cases of spinal cord herniation associated with intradural spinal arachnoid cyst are reported. A preoperative magnetic resonance imaging scan demonstrated the presence of spinal cord herniation, identified as a protrusion continuous with the spinal cord. Surgery upon the intradural spinal arachnoid cyst improved progressive neurological dysfunction. The authors postulate that spinal cord herniation occurred for the following reason: The pressure of the intradural arachnoid cyst on the dorsal aspect of the spinal cord caused thinning of the dura, leading to a tear and, thus, the development of an extradural arachnoid cyst. Along with the enlargement of intradural arachnoid cyst, the spinal cord herniated through the tear in the dura into the extradural arachnoid cyst. (Neurosurgery 29:137-139, 1991)

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