con el diagnóstico histopatológico de cordoma de la base del cráneo .. magnética cerebral, corte sagital, secuencia T1, cordoma del clivus. Resección endoscópica de cordoma del clivus. Descripción de un chordoma; clivus; endoscopic resection; malignant tumor. RESUMEN. Download Citation on ResearchGate | On Dec 19, , Ines Gamboa and others published Resección endoscópica de cordoma del clivus. Descripción de un.

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This neoplasm is thought to be essentially extradural in nature and generally associated with extradural extension and bone destruction. The extradural tumor lay within the loose areolar tissue of Batson’s plexus, demonstrated no osseous involvement, and was completely removed.

The tumor was enhanced inhomogeneously after administration of gadolinium-diethylenetriamine pentaacetic acid Gd-DTPA. Loading Stack – 0 images remaining. These foci were micro- rather than macroscopic, were entirely intraosseous, and bore no physical resemblance to ecchordosis physaliphora occurring in the cranial region. C2 vertebral body Case 4: The differential diagnosis of ecchordosis physaliphora and chordoma based on histological and radiological features is likely to be difficult.

This previously healthy year-old woman presented with a 2-month history of lumbar, right sacroiliac joint, and right thigh pain. Recurrence, including seeding along the operative tract, is common. For this reason, we selected stereotactic radiosurgery for remnant tumor in our case.

Histological, immunocytochemical, and ultrastructural studies confirmed the diagnosis of chordoma Figs. In fact, the imaging findings were atypical for vertebral chordoma and more characteristic of either a neurogenic neoplasm, such as neurilemoma or neurofibroma, an arachnoid cyst, or diverticulum. Postoperative MR imaging indicated residual tumor in right cerebellopontine area Fig. The role of radiosurgery in the management of chordoma and chondrosarcoma of the cranial base.

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Extraosseous spinal chordoma

While most people with chordoma have no other family members with the disease, rare occurrences of multiple cases within families have been documented. You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. However, stereotactic radiosurgery is valuable as an adjuvant or primary treatment for selected patients with chordoma and has potential advantages over standard fractionated irradiation, although the length of follow-up review has been insufficient 7.

Like their counterparts at other sites, such tumors are considered to arise from notochordal rests. Chordomas can arise from bone in the skull base and anywhere along the spine.

Chordoma – Wikipedia

Follow-up MR images at 1 month after operation demonstrates a remnant tumor. Examination On initial evaluation, the patient had ataxic gait.

Cases and figures Imaging differential diagnosis. The variety of these components may explain the signal heterogeneity observed on MRI.

Chordomas Chordoma – General Chordomas – general. She underwent retromastoid suboccipital craniotomy to resect the tumor mass and adjuvant gamma knife radiosurgery for remnant tumor at 1 month after operation.

Surgical experience and review of the literature. This page was last edited on 14 Novemberat Archived from the original on Atlas of Cranial Base Surgery. Author information Article notes Copyright and License information Disclaimer.

Histologically, they are identical to notochordal tissue. In some patients, calcification and sequestered bone fragments are found as well. This is in sharp distinction to chordomas of the vertebral bodies, which are virtually unresectable.

Electromicrographs of the tumor specimen. Pathology of Tumor of the Nervous System. The solid, spherical, circumscribed tumor wall was surrounded by delicate filamentous connective tissue and contained soft material that could be aspirated, as well as viscous fluid.

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Benign and malignant chordomas: Rest of operation coddoma uneventful. The proximity of chordomas to vital neurological structures such as the brain stem and nerves limits the dose of radiation that can safely be delivered. The yellow-brown spherical tumor was situated between the scalloped pedicle of the L-3 vertebra and nerve root. Immunohistochemical stains showing expression of cytokeratin Band S protein C.

Our experience suggests that at least some cranial chordomas enhance unpublished data. They most commonly involve cervical particularly C2followed by lumbar, and ckivus the thoracic spine. Topographically, they resemble ecchordoses in deel some demonstrate a delicate bone-associated pedicle; however, they differ in being larger and more cellular than ecchordoses. A soft, friable and grayish mass was seen.

Left parasagittal magnetic resonance image TR msec, TE 15 msec showing expansion of the L-3 neural foramen by a low-intensity lesion arrowwhich erodes the L-3 pedicle and vertebral body. Chordoma is a rare slow-growing neoplasm thought to arise from cellular remnants of the notochord. Pituitary macroadenoma Pituitary macroadenoma. Their locations included the prepontine region in ten cases, the suprasellar region in two cases and the intrasellar, foramen magnum, tentorium and ponto-cerebellar region in one case, respectively.

Chordomas are relatively radioresistant, requiring high doses of radiation to be controlled.

These small asymptomatic and largely intradural masses are considered hamartomas.