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Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

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Sphenoidal intracranial chondrosarcoma.

Faraz Qayyum Khan¹, Abdul Razzak Mari¹, Rafia Afzal²

¹Department of Neurosurgery, Civil Hospital, Karachi.

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP

|April 11, 2014

Summary

This summary is machine-generated.

A rare chondrosarcoma in the sphenoid sinus caused vision loss. Surgical resection and proton radiation therapy offer a promising outcome for this challenging craniocervical tumor.

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Area of Science:

Neuro-oncology
Ophthalmology
Radiology

Background:

Chondrosarcoma is a rare malignant tumor of cartilage-producing cells.
Craniocervical chondrosarcomas are exceptionally rare, accounting for only 7% of cases.
Sphenoid sinus tumors can present with significant neurological and visual deficits.

Observation:

A 40-year-old male presented with headache and progressive vision loss in both eyes.
MRI revealed a sphenoid sinus mass extending into the sellar and parasellar regions, compressing the optic apparatus.
Initial imaging differential diagnoses included craniopharyngioma and pituitary adenoma due to sellar floor erosion and calcification.

Findings:

Histopathology confirmed the diagnosis of chondrosarcoma.
The tumor's location and mass effect on the optic pathways were confirmed.
Despite initial misdiagnosis based on imaging, definitive diagnosis was established via biopsy.

Implications:

This case highlights the importance of considering rare tumors in the differential diagnosis of sellar/parasellar masses.
Maximal surgical resection followed by proton radiation therapy is a potentially effective treatment strategy.
Early diagnosis and multidisciplinary management are crucial for optimizing outcomes in patients with craniocervical chondrosarcoma.