chordoma

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Related to chordomas: chondrosarcomas

chordoma

[kȯr′dō·mə]
(medicine)
A rarely malignant tumor derived from persistent remnants of the notochord.
References in periodicals archive ?
Collaborative research funded by the Chordoma Foundation yields major discovery that could open door to new therapies
We present a case of chordoma, causing caudal compression, which was initially presumed to be a metastatic deposit from a renal cell carcinoma on the basis of radiological investigations.
In broad-based genetic studies, most chordomas were found to be diploid, with reduced survival in cases that had abnormal karyotypes including aneuploidy.
The hospital revealed that the boy, identified only as Tristan, was facing certain death from a chordoma, a rare, malignant brain tumour, which had wrapped around the 4-year-old's brain stem, making it impossible to use normal surgical techniques.
Chordomas are very rare tumors that are thought to originate from the embryologic remnants of the notochord, the nucleus pulposus.
Chordomas are rare, representing approximately only 1%-4% of all primary bone tumors.
While chordomas represent a one-in-a-million diagnosis (300 Americans are diagnosed with chordomas each year), ProCure New Jersey has successfully treated six chordoma patients in just the past few months.
Temporal bone chondrosarcomas have been mistaken for multiple sclerosis, glomus jugulare tumors, meningiomas, and chordomas.
Among their topics are the anatomy of the sellar and parasellar region, the radiologic evaluation and diagnosis for pathology in the region, medical evaluation and management, ophthalmologic evaluation and management, the surgical treatment of meningiomas, the surgical treatment of chordomas and chondrosarcomas, trans-sphernoidal approaches to the sellar and parasellar area, radiation therapy, and chemotherapy options.
Chordomas are rare, slow-growing tumours that originate from ectopic notochordal remnants, found along the axial skeleton.
1) Although histopathologic features of chordomas are characteristic, a considerable heterogeneity exists, posing a diagnostic challenge in its objective differentiation from other bone tumors, the closest being a chondrosarcoma.
Two patients with chordomas - bone tumors in the spinal region - were the first to be treated using protons generated by the new 250 MeV cyclotron, which is designed for high efficiency, low energy consumption, high reliability and modern treatment features such as spot scanning, enabling highly effective proton dose distribution in three dimensions, and beam intensity modulation.