Malignant Transformation of Clival Chordoma After Gamma Knife Surgery  -Case Report-

Tsuboi, Yoshifumi; Hayashi, Nakamasa; Kurimoto, Masanori; Nagai, Shoichi; Sasahara, Masakiyo; Endo, Shunro

doi:10.2176/nmc.47.479

Cited by 11 publications

(3 citation statements)

References 23 publications

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“…An explanation for the mechanism of spinal seeding is detachment of tumor cells and their seeding to the lower parts of the spinal leptomeninges (drop metastases) such as the case in medulloblastomas. Judging from the intracranial MRI images of previous 2 , 9 , 11 , 14) and our cases, extension into the cerebellopontine region and encroachment into the brain stem of the chordoma may be important causes of the occurrence of spinal metastasis. Few reports indicate that the faster growth rate of chordoma is associated with a Ki-67 labeling index of more than 6%.…”

Section: Discussionmentioning

confidence: 56%

Simultaneous Discovery of Cranial and Spinal Intradural Chordomas: Case Report

Kawanabe

Ueda

Sasaki

et al. 2014

Neurol. Med. Chir.(Tokyo)

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The present case illustrates the unexpected occurrence of intradural chordomas that were simultaneously discovered in cranial and spinal locations. A 63-year-old female presented with weakness in the left upper extremity. The patient visited a local doctor and underwent brain computerized tomography (CT). CT revealed a brain tumor, and she was referred to our hospital. Brain magnetic resonance imaging (MRI) demonstrated a midline intradural retroclival tumor in addition to an intradural extramedullary mass lesion at the level of C1-C2. The patient developed a spastic gait disturbance that forced her to use a cane. She underwent laminectomy at C1-C2 along with total removal of the tumor and showed no remarkable symptoms after surgery. Histopathological examination confirmed the diagnosis of chordoma. One month after the cervical surgery, the intracranial tumor was subtotally removed in intracranial surgery via the right subtemporal approach. Histopathological data were identical to that of the cervical tumor. The patient consulted another hospital and underwent gamma-knife surgery. Her neurological examination is relatively unchanged 20 months after the cervical surgery. This case suggests that neuroradiological evaluation should also be performed for an intradural spinal chordoma when an intracranial chordoma is detected. Careful determination of the tumor responsible for the symptoms is necessary if an intradural spinal chordoma is simultaneously detected with an intracranial chordoma.

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Section: Discussionmentioning

confidence: 56%

Simultaneous Discovery of Cranial and Spinal Intradural Chordomas: Case Report

Kawanabe

Ueda

Sasaki

et al. 2014

Neurol. Med. Chir.(Tokyo)

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“…9 Metastasis of clival chordoma after gamma knife surgery has also been reported. 10 Dissemination of tumor cells by transgressing the dura mater could be one of the pathogenesis of CSF dissemination. 11 In the report by Shinde and Monipanda 12 (a case of disseminated tumor on postmortem examination without prior surgical intervention), this may have been the case.…”

Section: Discussionmentioning

confidence: 99%

Extensive Drop Spinal Metastases from Clival Chordoma

Gala¹,

Becker²,

Ahmadli³

et al. 2013

neurograph

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“…CT shows lobulated, sharply restricted osteolysis. In T2-weighted sequences, they appear with a high intensity and high contrast enhancement [5] commonly appear in the petro-occipital fissure and clivus, and rare cases of chondrosarcoma are found in the temporomandibular joint [6] . Chondrosarcomas show the same T2-weighted images as chondromas.…”

Section: Bony Structures In the Head And Neckmentioning

confidence: 99%

Different imaging techniques in the head and neck: Assets and drawbacks

Vogl

Harth²,

Siebenhandl³

2010

WJR

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In this review, the gold standard imaging techniques for the head and neck and the latest upcoming techniques are presented, by comparing computed tomography (CT), magnetic resonance imaging and positron emission tomography-CT, as well as ultrasound, depending on the examined area. The advantages and disadvantages of each examination protocol are presented. This article illustrates the connection between the imaging technique and the examined area. Therefore, the head and neck area is divided into different sections such as bony structures, nervous system, mucous membranes and squamous epithelium, glandular tissue, and lymphatic tissue and vessels. Finally, the latest techniques in the field of head and neck imaging such as multidetector CT, dual-energy CT, flash CT, magnetic resonance angiography, spectroscopy, and diffusion tensor tractography using 3 tesla magnetic resonance are discussed.

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Malignant Transformation of Clival Chordoma After Gamma Knife Surgery -Case Report-

Cited by 11 publications

References 23 publications

Simultaneous Discovery of Cranial and Spinal Intradural Chordomas: Case Report

Simultaneous Discovery of Cranial and Spinal Intradural Chordomas: Case Report

Extensive Drop Spinal Metastases from Clival Chordoma

Different imaging techniques in the head and neck: Assets and drawbacks

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