• Journal of Digital Convergence
• /
• v.13 no.1
• /
• pp.331-339
• /
• 2015

The purpose of this study is to evaluate utility of rotating adjustment using Xsight spine tracking system in 3D DOF location adjusting method, to minimize error between 6D DOF and 3D DOF in fiducial tracking system. In this study, the result of 6D DOF target location error is $0.124{\pm}0.058mm$, using fiducial inside tumor 3D DOF $0.673{\pm}0.142mm$, outside tumor $1.126{\pm}0.253mm$, apply with Xsight spine tracking system 3D DOF $0.542{\pm}0.103mm$. As the experiment shows, it was demonstrated that rotating adjustment through Xsight spine tracking system is valuable in case of treatment in 3D DOF location error that makes increasing accuracy and dose distribution each approximately 48% and 3%. In accordance with result of this study is useful rotation.

• Journal of Korean Neurosurgical Society
• /
• v.41 no.1
• /
• pp.61-64
• /
• 2007

Lumbo-sacral junction is a transition lone between the mobile lumbar spine and immobile pelvis. Lumbosacral junction has been considered to be the most troublesome portion of the spine to be fused because of the difference in anatomical and biomechanical factors between spine and pelvis. A metastatic sacral tumor in a 57-year-old man was resected, followed by unilateral lumbo-iliac fixation across lumbosacral junction using modified Galveston technique. Rigid fixation was successfully achieved. Detailed anatomy and surgical techniques are presented.

• Journal of Korean Neurosurgical Society
• /
• v.40 no.2
• /
• pp.114-116
• /
• 2006

A Solitary plasmacytoma of bone[SPB] is a rare disease. This paper reports a case of SPB with massive aggregation of histiocytes known as pseudo-Gaucher cells. A 40-year-old male presented with progressive paraparesis and paraesthesia. The Magnetic Resornance Image[MRI] revealed a tumor mass in the thoracic spine that occupied the three colum. The tumor invaded the epidural space of T6 vertebra with compression of the spinal cord. There were no laboratory abnormalities. It was gross totally resected and his neurological symptoms improved. The microscopic examination revealed a plasmacytoma with massive aggregation of histiocytes. Futher neuroradiological studies were carried out and no other lesions were detected.

• Journal of Korean Neurosurgical Society
• /
• v.54 no.1
• /
• pp.54-57
• /
• 2013

We report a case of 29-year-old man diagnosed as a primary eosinophilic granuloma (EG) lesion of the seventh cervical vertebra. He had paresthesia on both arms, and grasping weakness for 10 days. Cervical magnetic resonance image (MRI) showed an enhancing mass with ventral epidural bulging and cord compression on the seventh cervical vertebra. Additionally, we performed spine series MRI, bone scan and positive emission tomography for confirmation of other bone lesions. These studies showed no other pathological lesions. He underwent anterior cervical corpectomy of the seventh cervical vertebra and plate fixation with iliac bone graft. After surgical management, neurological symptoms were much improved. Histopathologic evaluation confirmed the diagnosis of EG. There was no evidence of tumor recurrence at 12 months postoperative cervical MRI follow-up. We reported symptomatic primary EG of cervical spine successfully treated with surgical resection.

• Brain Tumor Research and Treatment
• /
• v.6 no.2
• /
• pp.73-77
• /
• 2018

Germinoma is the most common type of intracranial germ cell tumors (GCTs). Pineal gland and suprasellar region are the most frequent sites of central nervous system (CNS) involvement. Intracranial masses caused by Langerhans cell histiocytosis (LCH) mimics features of CNS GCTs. LCH frequently involve spine and is the most common cause of vertebra plana in children. A 15-year-old boy presented with progressing symptoms of polydipsia, polyuria, general headache, nausea and severe back pain. Brain MRI showed brain tumor with simultaneous involvement of suprasellar region and pineal gland. An excisional biopsy of suprasellar mass was done. The pathologic assessment confirmed the diagnosis of germinoma. Patient's treatment continued accordingly. A spine MRI, done due to persistent backache, showed a vertebra plana. We reevaluated the primary diagnosis suspecting LCH. Germinoma of CNS was confirmed and a biopsy of vertebral lesion resulted in hemangioma. Thus we report a case of CNS germinoma with co-occurrence of vertebra plana. We emphasized the importance of histopathologic diagnosis of pineal/suprasellar masses and primary investigation of other CNS regions including spine for possible metastasis or comorbidities.

• The Journal of the Korean bone and joint tumor society
• /
• v.15 no.2
• /
• pp.138-145
• /
• 2009

Purpose: Giant cell tumor of the spine is very rare, and the treatment is very difficult. However, surgical techniques and diagnostic modalities are developed, and postoperative functional results are improved. To evaluate the efficacy of total spondylectomy for giant cell tumor of the spine, the clinical results of the surgical treatments for the giant cell tumor of the spine with intralesional curettage or total spondylectomy were evaluated. Materials and Methods: From April 1987 to March 2006, 10 patients who were underwent surgical treatments using total spondylectomy or intralesional curettage were studied. There were 3 men and 7 women. The mean age of the patients was 32 years (range, 25~44 years). The mean duration of follow-up was 8 years (range, 3~15 years). Locations of the tumor were 2 cervical spines, 4 thoracic spines, 2 lumbar spines and 2 sacrum. Initial main symptom of 10 patients was pain, and 7 patients had neurologic impairments too. Four patients were treated with total spodylectomy using anterior and posterior combined approach, 1 patient was treated with total sacrectomy using posterior approach only, and 5 patients were treated with intralesional curettage using anterior approach. Results: Nine patients improved pain and neurologic impairments. Local recurrences developed in 4(40%) patients (2 cervical spines, 1 thoracic spine, 1 sacrum). While a local recurrence developed from 5 total spondylectomy, 3 local recurrences developed from 5 intralesional curettage. Conclusion: Local recurrence rate after surgical treatment with intralesional curettage for the giant cell tumor of the spine was very high. Total spondylectomy using anterior and posterior approach is advisable to prevent the local recurrence after surgical treatment.

• Journal of Korean Neurosurgical Society
• /
• v.53 no.1
• /
• pp.46-48
• /
• 2013

Chondrosarcoma is a very uncommon malignant primary bone tumor, especially, it occurs extremely rare in the spine. A 52-year-old man was admitted to the emergency room with sudden paraplegia. Twelve hours prior to a paraplegic event, he visited an outpatient clinic with discomfort and tenderness around the medial border of the right scapular, and his neurologic status was absolutely intact. Magnetic resonance imaging showed a lobulated soft tissue mass from T3 to T5, which extended to the epidural space. Computed tomography scans showed soft tissue mass on the spinal posterior arch and osteolytic change of the adjacent bony structures. Emergent surgery was performed and the lesion was removed. Dark reddish blood and gel-like material were encountered around the dura and posterior arch during the operation. Multiple pulmonary nodules were found on a chest CT scan and a biopsy of one of them had been proven to be a metastasis of chondrosarcoma. The histologic examination showed dedifferentiated chondrosarcoma. The patient's neurologic deficit was improved slowly from ASIA A to ASIA D. Chondrosarcoma in the spine is extremely rare, even more with acute hemorrhage and sudden expansion into the epidural space. We named it chondrosarcoma apoplexy. We should consider the possibility of a hemorrhagic event when the patient's neurologic deficit worsens suddenly with spinal bone tumor.

• The Journal of the Korean bone and joint tumor society
• /
• v.3 no.1
• /
• pp.26-31
• /
• 1997

One of the most common benign tumors of bone is the osteochondroma which is a cartilage-capped bony projection on the surface of a bone. It may occur in any bone that has been performed from cartilage, but the most common locations are the long bone at the metaphyseal region of the most active growth cartilage, that is, the lower end of femur, the upper end of the tibia, and the upper end of the humerus. Other bones often involved are the ilium, scapula, fibula, and phalanges of hands and feet. But, the vertebral column is very rare location for osteochondroma. Only one case of osteochondroma involving the lumbar spine has been previously reported in Korea. We report an unusual case of osteochondroma arising from the left lamina and inferior articular process of the 3rd lumbar spine causing spinal cord compression.

• Journal of Korean Neurosurgical Society
• /
• v.52 no.2
• /
• pp.161-163
• /
• 2012

Spinal angiolipomas are rare lesions usually found in the epidural space of the thoracic spine. The infiltrating type of spinal angiolipomas is extremely rare. This report presents the case and reviews the related literature. A 58-year-old man was presented with a 7-month history of progressive weakness and sensory change of lower extremities. Magnetic resonance images showed a well-enhanced mass infiltrating the vertebral foramen at the T4-5 level. Resection of the tumor was performed. Histological study revealed the tumor as an angiolipoma. The patient was relieved from symptoms after tumor resection.

• Journal of Chest Surgery
• /
• v.39 no.1 s.258
• /
• pp.80-84
• /
• 2006

A combined anterolateral and posterior approach with thoracotomy has been recommended as the traditional surgical approach for the tumors of the thoracic spine. Recently, because of the morbidity associated with open thoracotomy, the thoracoscopically assisted surgical technique was introduced successfully in thoracic spinal surgery. Herein, we report a combined surgical technique for giant cell tumor of the thoracic spine (T10) consisting of bilateral thoracoscopic anterior release of the spine followed by a posterior on bloc spondylectomy and reconstruction by orthopedic surgeons. The thoracoscopic spinal surgery is safe and effective alternative for other open thoracotomic procedures in the approach to the anterior thoracic spine, avoiding the disadvantage inherent to thoracotomy.