• 제목/요약/키워드: Extradural meningioma

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Purely Extradural Spinal Meningioma of the Cervical Spine

  • Choi, Jun-Woong;Park, In-Seo;Yoon, Seung-Hwan;Park, Jong-Oon
    • Journal of Korean Neurosurgical Society
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    • 제37권1호
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    • pp.73-75
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    • 2005
  • Spinal meningiomas located purely in the extradural space are rare, and they may easily be confused with malignant neoplasm. We report an unusual case of a purely extradural spinal meningioma mimcking metestatic neoplasm. A 38-year-old woman had neck pain and left side weakness. MRI scan revealed extradural spinal mass. Preoperative and intraoperative diagnosis was metastatic carcinoma, but permanent diagnosis was extradural meningioma.

A Case of Thoracic Extradural Chordoid Meningioma: Focusing on Radiologic Features

  • Kim, Bo Ra;Ha, Dong-Ho;Pak, Min Gyoung;Kim, Jong Kuk
    • Investigative Magnetic Resonance Imaging
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    • 제22권4호
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    • pp.260-265
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    • 2018
  • Chordoid meningioma, an uncommon subtype of meningioma, occurs rarely in the spine. In this case report, the authors present a case of spinal chordoid meningioma in a young female patient, and include a detailed description of imaging findings and a literature review.

흉추에서 발생한 척수 경막 외 림프구 형질세포 과다형 수막종: 증례 보고와 문헌 고찰 (Extradural Spinal Lymphoplasmacyte-Rich Meningioma in the Thoracic Spine: A Case Report and Literature Review)

  • 서은혜;차장규;윤유성;문아림
    • 대한영상의학회지
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    • 제83권4호
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    • pp.924-930
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    • 2022
  • 대부분의 척수 수막종은 경막 내에 위치하거나 부분적으로 경막 외에 위치한다. 척수 수막종의 가장 흔한 병리학적 유형은 수막세포종 기원이다. 온전하게 경막 외에 위치한 척수 수막종은 드물며 림프구 형질세포 과다형 수막종은 매우 드문 유형이다. 우리는 병리학적으로 확진된 흉추에서 발생한 경막 외 척수 림프구 형질세포 과다형 수막종의 자기공명영상과 컴퓨터단층촬영 영상의 소견을 소개하고자 한다.

Primary Intraosseous Meningioma

  • Cho, Won-Sang;Im, So-Hyang;Oh, Chang-Wan
    • Journal of Korean Neurosurgical Society
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    • 제37권3호
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    • pp.238-240
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    • 2005
  • Meningioma is usually known to occur stuck to the dura mater, but extradural meningioma occurs rarely. Most of the extradural meningiomas are located in the head and neck and we report a case of the primary intraosseous meningioma in the orbit. A 50-year old woman presented with the left eye hyperemia and exophthalmos. Neuroimaging modalities showed hyperostosis at the left sphenoid and orbital wall. On microscopic view, spindle cells and psammoma bodies between the woven bones were observed. The origin of the intraosseous meningioma is explained with various potent possibilities and differential diagnosis thoroughly explored.

신경근에서 발생한 흉추부 경막외 수막종 1례 (Extradural Thoracic Spinal Meningioma Arising from a Nerve Root - Case Report -)

  • 장우영;김근수;이정청;현수남;한동한
    • Journal of Korean Neurosurgical Society
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    • 제30권3호
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    • pp.400-403
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    • 2001
  • Extradural meningiomas are relatively rare and those arising from spinal root are even rarer. Recently, a case of extradural meningioma arising from a spinal nerve root was surgically treated in our institution. This patient was a 19-year-old female presented with paraparesis and paresthesia. The mass was compressing the spinal cord at the level of fourth thoracic spine, and it was extended to the nerve root. At operation it was found to be originated from the fourth thoracic spinal nerve root. After removal of the tumor, the neurologic symptom and sign were recovered completely. Histoligic examination of tumor revealed as transitional type of meningioma.

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Primary Osteolytic Intraosseous Atypical Meningioma with Soft Tissue and Dural Invasion : Report of a Case and Review of Literatures

  • Yun, Jung-Ho;Lee, Sang-Koo
    • Journal of Korean Neurosurgical Society
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    • 제56권6호
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    • pp.509-512
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    • 2014
  • Primary intraosseous meningioma is a rare tumor, and atypical pathologic components both osteolytic lesion and dura and soft tissue invasion is extremely rare. A 65-year-old woman presented with a 5-month history of a soft mass on the right frontal area. MR imaging revealed a 4 cm sized, multilobulated, strongly-enhancing lesion on the right frontal bone, and CT showed a destructive skull lesion. The mass was adhered tightly to the scalp and dura mater, and it extended to some part of the outer and inner dural layers without brain invasion. The extradural mass and soft tissue mass were totally removed simultaneously and we reconstructed the calvarial defect with artificial bone material. The pathological study revealed an atypical meningioma as World Health Organization grade II. Six months after the operation, brain MR imaging showed that not found recurrence in both cranial and spinal lesion. Here, we report a case of primary osteolytic intraosseous atypical meningioma with soft tissue and dural invasion.

A Dumbbell-Shaped Meningioma Mimicking a Schwannoma in the Thoracic Spine

  • Kim, Myeong-Soo;Eun, Jong-Pil;Park, Jeong-Soo
    • Journal of Korean Neurosurgical Society
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    • 제50권3호
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    • pp.264-267
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    • 2011
  • A 50-year-old man presented bilateral hypesthesia on and below the T6 dermatome and paresthesia. Magnetic resonance imaging (MRI) showed an intraspinal extradural tumor, which located from the 6th thoracic vertebral body to the upper margin of the 7th vertebral body, continuing dumbbell-like through the intervertebral foramen into the right middle thorax suggesting a neurogenic tumor (neurofibroma or neurilemmoma). With the patient in a prone position, we exposed and excised the tumor via a one stage posterior approach through a hemi-laminictomy of T6. Histologic examination showed a grade 1 meningothelial meningioma, according to the World Health Organization classification. Initially, we assumed the mass was a schwannoma because of its location and dumbbell shape. However, the tumor was actually a meningioma. Postoperatively, hypesthesia resolved completely and motor power of the leg gradually full recovered. A postoperative MRI revealed no evidence of residual tumor.

Coexistence of Radiation-induced Meningiomas and Shunt Related Pneumocephalus in a Patient with Successfully Treated Medulloblastoma

  • Kim, Young-Hoon;Kim, Chae-Yong
    • Journal of Korean Neurosurgical Society
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    • 제41권6호
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    • pp.403-407
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    • 2007
  • The authors encountered a case of simultaneous radiation-induced multiple meningiomas and ventriculoperitoneal [VP] shunt-related pneumocephalus. A 35-year-old man, who had undergone surgery for medulloblastoma 21 years previously and subsequently received high dose craniospinal irradiation with adjuvant chemotherapy and later underwent a VP shunt because of hydrocephalus, presented with a severe headache and weakness of both lower extremities. Computed tomography showed an air pocket lesion in the left temporal lobe and a large amount of pneumocephalus with a bony defect of the left tegmen tympani. In addition, a 3 cm sized well enhancing mass was noted in the in the right middle cranial fossa and additional small enhancing nodule in the left frontal pole. He was treated by left temporal craniotomy and repair of the bony and dural defects of the left tegmentum tympanum through extradural and intradural approaches, respectively. Afterwards, he underwent right temporal craniotomy and gross total removal of a rapidly growing right middle fossa mass and a left frontal mass. The histological examination was consistent with atypical meningioma, WHO grade II. In conclusion, physicians have to consider the serious long term complications of high dose radiation therapy and VP shunt placement and need to perform the neuroradiologic follow-up after such treatments for several decades.