• Journal of Korean Neurosurgical Society
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• 제49권6호
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• pp.377-380
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• 2011

A case of intradural extramedullary cavernous angioma is presented with headache, dizziness, and bilateral sensorineural hearing loss caused by an intracranial superficial hemosiderosis. It was incidentally found in a patient with a 3-month history of sustained headache, dizziness and a 3-year history of hearing difficulty. The neurological examination was unremarkable in the lower extremity. MR images showed an intracranial superficial hemosiderosis mostly in the cerebellar region. Myelography and MR images of the thoracolumbar spine revealed an intradural extramedullary mass, which was pathologically proven to be a cavernous angioma. T12 total laminoplastic laminotomy and total tumor removal were performed without any neurologic deficits. The patient's symptoms, including headache and dizziness, have been absent for three years. Intradural extramedullary cavernous angioma can present with an intracranial superficial hemosiderosis as a result of chronic subarachnoid hemorrhage.

• Journal of Korean Neurosurgical Society
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• 제52권4호
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• pp.417-419
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• 2012

Tumors of the central nervous system are common in the pediatric population and constitute the second most prevalent tumor type in children. Within this group, spinal cord tumors are relatively rare and account for 1 to 10% of all pediatric central nervous system tumors. We describe a very rare case of an intradural extramedullary spinal cord tumor with a subcutaneous mass and discuss its clinical presentation, pathogenesis, and treatment. A male infant was delivered normally, with uneventful development. At 16 days post-delivery, his family took him to a pediatrician because of a mass on his upper back. Magnetic resonance imaging of the thoracic spine revealed a well-demarcated soft-tissue mass with central cystic change or necrosis at the subcutaneous layer of the posterior back (T2-7 level). Another mass was found with a fat component at the spinal canal of the T1-3 level, which was intradural extramedullary space. After six weeks, the spinal cord tumor and subcutaneous mass were grossly total resected; pathologic findings indicated an atypical myxoid spindle cell neoplasm, possibly nerve sheath in type. The final diagnosis of the mass was an atypical myxoid spindle cell neoplasm. The postoperative course was uneventful, and the patient was discharged after nine days without any neurological deficit. We report a rare case of an intradural extramedullary spinal tumor with subcutaneous mass in a neonate. It is necessary to monitor the patient's status by examining consecutive radiologic images, and the symptoms and neurological changes should be observed strictly during long-term follow-up.

• Journal of Korean Neurosurgical Society
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• 제38권3호
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• pp.245-247
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• 2005

Most chordomas show extradural extension and bone destruction. A 32-year-old man presented with neck pain and progressive paraparesis. He had been diagnosed a clival chordoma and underwent an operation seven years ago. Radiological studies revealed that the tumor was recurred in a retroclival area and invaded into intradural region. We removed the tumor by two staged operations. After surgery, satisfactory results were achieved.

• Journal of Korean Neurosurgical Society
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• 제38권4호
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• pp.316-319
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• 2005

A 42-year-old female was admitted with an 11-month history of progressive spastic paraparesis and ataxic gait. Magnetic resonance imaging showed intraspinal space occupying lesion compressing the spinal cord posteriorly, located from C5 to T2 with iso to high signal intensity at T2-weighted images and high signal intensity at T1-weighted images. The patient underwent surgery for decompression of the affected spinal cord because of the progressive neurological deficit. At surgery, the lesion was intradural extramedullary lipoma composed with mature adipose tissue. Partial tumor removal to decompress the neural structures and laminoplasty to avoid postoperative instability and deformity were performed. Postoperatively, she demonstrated improvement in paraparesis and was able to walk without assistance. Though attempts to decrease the size of or even to totally remove a lipoma are not required to achieve satisfactory results and carry considerable risks of surgical morbidity, a careful and limited decompression of the affected spinal cord through a partial removal of the tumor and laminoplasty could result in a significant neurological improvement.

• Journal of Korean Neurosurgical Society
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• 제29권8호
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• pp.1085-1088
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• 2000

Spinal intradural extramedullary metastasis are very rare. The authors report a case of spinal metastasis at the T5 level in the intradural extramedullary space in a 76-year-old man who presented with paraparesis and sciatica. Preoper-ative neuroradiologic imaging studies were highly suggestive of intradural mass lesion with compressive myelopathy. Pathology revealed metastatic squamous cell carcinoma. We describle the mechanism of tumor spread in intradural spinal metastasis.

• 대한골관절종양학회지
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• 제17권2호
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• pp.106-110
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• 2011

요추부 척추관 협착증과 경막내 종양이 동반되어 있는 환자에서, 척추관 협착증에 대한 수술적 치료만 시행하였다가 수술 후 증상이 잔존할 수 있다. 본 증례는 척추 신경이 척추관 협착증으로 인한 외적인 압박과 함께, 종양의 공간 점유로 경막내 압박을 동반하였던 경우로, 신경 감압술과 경막내 종양의 제거를 동시에 시행하여 성공적으로 치료되었기에 문헌 고찰과 함께 보고하는 바이다. 71세 여자환자가 하부 요통 및 양측 하지로의 방사통을 주소로 내원하였다. 자기 공명 영상에서 제 4-5 요추부는 척추관 협착증 소견과 함께 제 5 요추-제 1 천추부에 경도의 척추 전방 전위증 소견이 관찰되었고, 제 4 요추체 부위에서 타원형의 경막내 공간의 대부분을 점유하는 종괴가 관찰되었다. 후방 도달법으로 감압술 및 유합술을 시행한 다음, 정중 경막 절개술을 통해 종괴를 제거하였다. 조직 검사상 신경초종으로 진단되었고, 수술 후 증상은 현저히 호전되었다.

• Journal of Korean Neurosurgical Society
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• 제53권2호
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• pp.121-124
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• 2013

Granular cell tumors (GrCTs) of the spinal cord are rare benign tumors with a high rate of local recurrence. Only 6 cases of spinal GrCTs have been reported. GrCT is difficult to distinguish from other benign tumors such as schwannoma using imaging. A radiological "speckled dots" sign may be a useful differentiating feature of GrCT based upon experience with two cases and a review of the literature.

• Journal of Korean Neurosurgical Society
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• 제50권1호
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• pp.57-59
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• 2011

Intradural extramedullary (IDEM) ependymomas occur very rarely and little has been reported about their clinical characteristics. The authors present a case of a 57-year-old woman with an IDEM ependymoma. She was referred for the evaluation of a 4-month history of increasing neck pain and muscular weakness of the left extremities. Magnetic resonance imaging (MRI) of the cervical spine demonstrated an IDEM tumor with spinal cord compression. At the time of surgery, an encapsulated IDEM tumor without a dural attachment or medullary infiltration was noted, but the tumor capsule adherent to the spinal cord and root was left in place to minimize the risk of neurological sequelae. Histologic examination revealed a benign classic ependymoma. The post-operative course was uneventful and radiotherapy was performed. The patient showed an excellent clinical recovery, with no recurrence after 5 years of follow-up.

• Journal of Korean Neurosurgical Society
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• 제29권11호
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• pp.1523-1526
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• 2000

It has been known that hemangioblastoma of spinal cord occurs about 4% of all the spinal tumors. The authors present a rare case of intradural extramedullary(IDEM) hemangioblastoma of distal spinal cord in 41-year-old male patient. This IDEM mass at the level of conus medullaris showed iso-signal intensities on T1-weighted image(T1-WI) and high-signal intensities on T2-WI, and was enhanced homogeneously on MRI. At surgery, T12- L1 total laminectomy and enbloc mass removal were performed. This IDEM hemangioblastoma was confirmed by histopathologic findings. For less postoperative complication in IDEM tumors, we suggest that precise preoperative evaluation and complete excision via proper surgical approach to distal conus should be reemphasized.

• 대한영상의학회지
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• 제81권6호
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• pp.1466-1471
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• 2020

척추 경막 내 신경집종에 염전이 동반되는 경우는 드물다. 우측 엉치 통증과 하지 방사통을 주소로 내원한 63세 남자의 요추 수준에서 경막 내 신경집종이 발견되었다. 이 신경집종은 조영증강 자기공명영상에서 조영증강이 잘되지 않았고, 자기공명영상 및 척수조영-전산화단층촬영 영상에서 검사할 때마다 위치가 바뀌었다. 환자는 수술적 절제를 받았으며 신경집종은 염전을 동반하고 있었다.