- Neoplastic lesions - Chondrosarcomas are malignant tumors of cartilage with lobulated hypercellular areas characterized by hyperchromatic pleomorphic nuclei and prominent nucleoli. (http://emedicine.medscape.com/article/883373-diagnosis)
- Surgical approach - The intranasal transsphenoidal endoscopic approach was first described by Fucci in 1994. This method opens the sphenoid sinus and then opens the posterior wall of sphenoid sinus into the cyst. A stent is placed to keep the pathway open…Newer available imaging techniques such as CT image-guided surgery and MRI-guided surgery afford the surgeon a real-time evaluation of the location and the progress of the dissection. This can allow the surgeon to immediately determine the exact location of the carotid artery, …and other pertinent structures in relationship to the probe.
- Chondrosarcoma - Chondrosarcomas account for only 0.15% of all intracranial neoplasms. Hearing loss, pulsatile tinnitus, vertigo/unsteadiness, VI palsy, and headaches are the presenting symptoms. CT scanning shows irregular bone destruction with contrast enhancement. MRI shows enhancement with gadolinium (greater than observed with chordomas). Complete surgical excision with postoperative radiation therapy is the treatment plan of choice. Chondrosarcomas are histologically graded, and survival depends on grade as well as symptoms, origin of lesion, and efficacy of surgical extirpation.
(http://emedicine.medscape.com/article/883373-treatment)
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