Search results
Results From The WOW.Com Content Network
The concept of grading of the tumors of the central nervous system, agreeing for such the regulation of the "progressiveness" of these neoplasias (from benign and localized tumors to malignant and infiltrating tumors), dates back to 1926 and was introduced by P. Bailey and H. Cushing, [1] in the elaboration of what turned out the first systematic classification of gliomas.
1.5.10 Multinodular and vacuolating neuronal tumor 1.5.11 Dysplastic cerebellar gangliocytoma (Lhermitte-Duclos disease) 1.5.12 Central neurocytoma 1.5.13 Extraventricular neurocytoma 1.5.14 Cerebellar liponeurocytoma 1.6 Ependymal tumours 1.6.1 Supratentorial ependymoma 1.6.1.1 Supratentorial ependymoma, ZFTA fusion-positive
Appropriate use criteria (AUC), sometimes referred to as appropriateness criteria (AC), specify when it is appropriate to perform a medical procedure or service. An "appropriate" procedure is one for which the expected health benefits exceed the expected health risks by a wide margin.
The International Classification of Diseases for Oncology (ICD-O) is a domain-specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. This classification is widely used by cancer registries. It is currently in its third revision (ICD-O-3). ICD-10 includes a list of ...
Clinically, CNS metastasis is known to cause haemorrhage or obstruction in the cranial portion of the CNS leading to hydrocephalus. [9] Additionally, metastatic lesions are usually discrete within the brain and appear as spherical masses that displace the brain parenchyma rather than invading the tissues. [10]
A brain metastasis is a cancer that has metastasized (spread) to the brain from another location in the body and is therefore considered a secondary brain tumor. [ 1 ] [ 2 ] The metastasis typically shares a cancer cell type with the original site of the cancer. [ 3 ]
One case of metastatic disease to the abdomen via ventriculoperitoneal shunt has been reported with AT/RT . Metastatic dissemination via this mechanism has been reported with other brain tumors, including germinomas, medulloblastomas, astrocytomas, glioblastomas, ependymomas, and endodermal sinus tumors. Guler and Sugita separately reported ...
In children aged 0–14 years, the most common brain tumors are: [15] Pilocytic astrocytomas – 17.5%; Embryonal tumors – 15.7%; Malignant gliomas – 25.7%; The overall incidence rate of brain tumors in children is 6.2 per 100,000 [9]. The distribution and behavior of nervous system neoplasms differ significantly between adults and children.