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Positive Negative Positive negative Conventional OSA 25 17 8 24 1 Chondroblastic 4 2 2 4 0 Fibroblastic 1 0 1 0 1 NOS 20 15 5 20 0 OPBT 25 16 9 5 20 Angiosarcoma 2 0 2 0 2 Chondrosarcoma 13 11 2 5 8 Chordoma 3 1 2 0 3 Ewing's sarcoma 3 3 0 0 3 Low grade fibromyxoid 1 0 1 0 1 sarcoma Malignant giant cell 1 0 1 0 1 tumor Plasmacytoma 2 1 1 0 2 p value p = 0.061 p < 0.0001 OCN, Osteocalcin; ALP, Alkaline Phosphatase; OSA, Osteosarcoma; NOS, not otherwise specified; OPBT, Other Primary Bone Tumor.
In the follow-up period (40-151 months), seven out of 80 patients (8.8%) who received total tumor removal experienced recurrence, including 5 cases with chordoma in the clivus, one case with esthesioneuroblastoma, and one case with adenocarcinoma in the anterior skull base.
Brainstem Multiple sclerosis Mass lesion: tumor, cavernous malformation Infection including herpes Infarct Syringobulbia Cisternal space and Neurovascular conflict (the most common cause Meckel's cave of trigeminal neuralgia) Mass in the cisterns: schwannoma, meningioma, epidermoid Leptomeningeal process: carcinomatosis, lymphoma, leukemia, sarcoidosis, meningitis Skull base mass: chordoma, chondrosarcoma, multiple myeloma, osseous metastasis Gradenigo syndrome Cavernous sinus Neoplasms: schwannoma, meningioma, pituitary macroadenoma, lymphoma, nasopharyngeal carcinoma, metastatic disease Tolosa-Hunt syndrome Infection Carotid-cavernous aneurysm/fistula Extracranial space Perineural spread of head and neck neoplasm Peripheral nerve sheath tumor
[U.S.A.], October 13 ( ANI ): Here's a ray of hope for patients with a rare bone cancer of the skull and spine - chordoma, as now they can be helped by existing drugs, suggests a new study.
Chordoma. A, This tumor shows characteristic "physaliferous cells." The stroma may less commonly have a chondromyxoid appearance (chondroid chordoma) (B).
Chordoma: incidence and survival patterns in the United States, 1973-1995.
Mazna Amanullah sought 10,000 euros (BD 4,189) for the treatment of Waqas Mir, who suffers from Sacral chordoma - a slow growing cancerous tumour.
Rest of the tumour categories were peripheral nerve origin tumours, pituitary tumours, craniopharyngioma, embryonal tumours, chordoma and metastasis.
Differential diagnosis of TC should include choanal polyp, angiofibroma, nasopharynx cancer, mucosal and adenoid retention cysts, chordoma, meningomyeloceles and meningoceles, adenoid retention cysts, branchial cleft cysts, and Rathke's pouch cysts.6,7
Differential diagnoses include necrotic primary adenoma with significant intrasellar extension, craniopharyngioma, chordoma, plasmacytoma, osteoma, osteoblastoma, basal cell and squamous cell carcinoma, rhinolitis, polyps, and fibrous dysplasia [5].
Chordoma is a slow-growing, locally invasive, rare malignant tumor restricted to the axial skeleton that occurs with an overall incidence of less than 1 in 1,000,000 people [1-4].