Search results
Results From The WOW.Com Content Network
Cytopathology is frequently, less precisely, called "cytology", which means "the study of cells". [ 2 ] Cytopathology is commonly used to investigate diseases involving a wide range of body sites, often to aid in the diagnosis of cancer but also in the diagnosis of some infectious diseases and other inflammatory conditions. [ 3 ]
Pineoblastoma on brain imaging. Pineoblastoma is a malignant tumor of the pineal gland. A pineoblastoma is a supratentorial midline primitive neuroectodermal tumor. [2] Pineoblastoma can present at any age, but is most common in young children. They account for 0.001% of all primary CNS neoplasms. [3]
The critical step in treatment planning is to determine the correct histology of the tumor. Misidentification of the tumor histology can lead to errors in treatment and prognosis. [24] Atypical teratoid/rhaboid tumor closely resembles medulloblastoma, [25] primitive neuroectodermal tumor, choroid plexus carcinoma, and some kinds of germ cell tumor.
Only patients with measurable disease at baseline should be included in protocols where objective tumor response is the primary endpoint. Measurable disease – the presence of at least one measurable lesion. If the measurable disease is restricted to a solitary lesion, its neoplastic nature should be confirmed by cytology/histology.
Removal of tumor tissues helps decrease the pressure of the tumor on nearby parts of the brain. [17] The main goal of surgery is to remove as much as possible of the tumor mass while preserving normal brain function, and to relieve the symptoms caused by the tumor such as headache, nausea and vomiting. [ 18 ]
Pilocytic astrocytoma (and its variant pilomyxoid astrocytoma) is a brain tumor that occurs most commonly in children and young adults (in the first 20 years of life). They usually arise in the cerebellum, near the brainstem, in the hypothalamic region, or the optic chiasm, but they may occur in any area where astrocytes are present, including the cerebral hemispheres and the spinal cord.
Medulloblastoma is a common type of primary brain cancer in children. It originates in the part of the brain that is towards the back and the bottom, on the floor of the skull, in the cerebellum, or posterior fossa. [3] The brain is divided into two main parts, the larger cerebrum on top and the smaller cerebellum below towards the
Dysembryoplastic neuroepithelial tumour (DNT, DNET) is a type of brain tumor.Most commonly found in the temporal lobe, DNTs have been classified as benign tumours. [1] These are glioneuronal tumours comprising both glial and neuron cells and often have ties to focal cortical dysplasia.