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1.  Management of Thoracal and Lumbar Schwannomas Using a Unilateral Approach without Instability: An Analysis of 15 Cases 
Asian Spine Journal  2012;6(1):43-49.
Study Design
Retrospective case series.
The objectives of this study were to determine and discuss the surgical planning of patients who underwent operations following diagnoses of thoracal and lumbar spinal schwannomas. We also aimed to discuss the application of unilateral hemilaminectomy for the microsurgery of schwannomas.
Overview of Literature
Schwannomas are located in different regions and sites. These differences require several surgical approaches. Unilateral laminectomy without stabilization of the spine provides a more minimally invasive removal of the tumor.
In this retrospective study, 15 patients with spinal schwannomas were evaluated with regards to age, sex, onset history, neurological findings, tumor locations, McCormick scale, surgical procedure, and operational results. The lateral approach provides exposure of intradural structures and posterior paraspinal regions. Extensions of tumors cause problem for the surgeon in terms of approach, resectability of the tumor, and stability of the spine. Gross total resection was achieved in all cases, and none of the patients necessary required a fusion procedure.
Five patients were males and 10 were females. The age interval was 29-65 years. The tumor was located in the lumbar region in 9 patients, in the thoracic region in 2 patients, and in the thoracolumbar junction in 4 patients. The intradural lesions were removed by laminectomy and the extradural lesions were resected with hemilaminectomy. The paramedian route was used to explore the extraspinal part of the tumor. Costotransversectomy was for the thoracic region. Subtotal resection was performed in 1 patient. Patient symptoms recovered gradually in the postoperative period.
Resection of giant schwannomas is challenging and usually requires a different approach. We describe the complete resection of complex dumbbell or paraspinal schwannomas of the thoracic and lumbar spine by unilateral hemilaminectomy.
PMCID: PMC3302914  PMID: 22439087
Thoracolumbar Schwannoma; Unilateral approach; Instability; Management
2.  Schwannoma of the conus medullaris: a rare case 
Chinese Journal of Cancer  2011;30(12):867-870.
Intradural schwannoma of the conus medullaris is a rare form of spinal neoplasm, which commonly occurs in the lumbar region. Conus medullaris level is unusual for schwannomas. A 49-year-old woman presented with chronic sciatica, mild bladder dysfunction, and paresthesia in the buttocks. Magnetic resonance imaging of the spine showed a mass lesion in the conus medullaris region with nerve compression. The tumor was completely resected and diagnosed histologically as schwannoma. The patient recovered after surgery. Clinical and radiologic features of this rare tumor are reviewed and are accompanied by literature findings.
PMCID: PMC4013335  PMID: 22085527
Schwannoma; conus medullaris; spine; surgery
3.  Cystic mature teratoma of the thoracic region in a child: An unusual case 
Cystic mature teratomas of the spinal cord are rare lesions. Teratomas account for up to 0.1% of all spinal cord tumors. Teratomas include tissues that originate from the three germ layers. Several congenital disorders may accompany the teratoma. Teratomas are classified as mature, immature or malignant type according to their histological characteristics. Thoracic spinal teratomas are uncommon in the pediatric age group. More than half of the patients are adults. We present herein a five-year-old male patient who was referred to our clinic with cystic mature teratoma at the T12 level.
PMCID: PMC3159361  PMID: 21897688
Mature teratoma; spinal tumor; thoracic region; treatment
5.  Spinal gout tophus: a very rare cause of radiculopathy 
European Spine Journal  2011;21(Suppl 4):400-403.
Gout is a common metabolic disease characterized by the development of arthritis and nephropathy related to the deposition of monosodium urate crystals within the joints, periarticular tissues, skin and kidneys. Tophus formation seen around the spinal column is very rare, while occurrences of spinal gout tophus without systemic gout disease are much more unique. In our study, we report a spinal gout case that presented with right sciatica without previous history of systemic gout disease.
PMCID: PMC3369051  PMID: 21594750
Gout tophus; Radiculopathy; Spinal column; Management
6.  Giant non-traumatic arteriovenous malformation of the scalp 
Asian Journal of Neurosurgery  2012;7(1):39-41.
Arteriovenous malformation (AVM) of the scalp is an uncommon entity. Its management is difficult because of its high shunt flow, complex vascular anatomy, and possible cosmetic complications. The etiology of scalp AVMs may be spontaneous or traumatic. Clinical symptoms frequently include pulsatile mass, headache, local pain, tinnitus; and less frequently, hemorrhage and necrosis. Selective angiography is the most significant diagnosis method. Surgical excision is especially effective in AVMs and the most frequently used treatment method. In this article, we discussed the clinical features and surgical management of scalp AVMs.
PMCID: PMC3358958  PMID: 22639692
Arteriovenous malformation; diagnosis; scalp; treatment

Results 1-6 (6)