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chordoma

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia 0.06 sec.
chordoma /chor·do·ma/ (kor-do´mah) a malignant tumor arising from the embryonic remains of the notochord.
chor·do·ma (kôr-dm)
n.
A rare solitary neoplasm of skeletal tissue in adults.

chordoma
[kôrdō′mə] pl. chordomas, chordomata,
a rare tumor that develops from the fetal notochord. It is usually located in the midline, behind the sella; it is slow growing but highly invasive.

chordoma
a malignant tumor arising from embryonic remains of the notochord.


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The differential diagnosis of large nasopharyngeal masses should include (1) benign disease such as juvenile angiofibroma, teratoma, meningoencephalocele, chordoma, paraganglioma, and nasopharyngeal extension of a parapharyngeal parotid tumor and (2) malignant disease such as carcinoma, lymphoma, and sarcoma.
Spine tumors most commonly treated with CyberKnife include: meningioma, schwannoma, neurofibroma, hemangioblastoma, arteriovenous malformations, chondrosarcoma, chordoma, ependyoma, spinal metastases from many sources, myeloma, lymphoma, and Ewing sarcoma.
A primary chordoma of the nasal cavities and paranasal sinuses is extremely rare compared with clival chordomas, which often present as nasal masses after spreading anteriorly.
 
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