Medulloblastoma

A tumour which develops in the medulla oblongata and the fourth ventricle of the brain in children.


Medulloblastomas are malignant neoplasms of the central nervous system and account for 30% of all pediatric brain tumors. In children, the cerebellum is most commonly affected, and tumor infiltration is usually midline. Medulloblastomas arise from the cerebellar vermis and are usually solid. The mass lesion is pinkish-gray in color, and cysts, necrosis, and calcification are uncommon. Histologically, cells are small and have scant cytoplasm and few stroma. Frequent mitotic figures are found, and pseudorosettes have been noted. Differentiation is generally poor. Originally classified as a glioma, medulloblastoma is now considered a primitive neuroectodermal tumor.


A soft, infiltrating tumor of the external layer of cerebellum.


A rapidly growing, cancerous brain tumor, most often seen in children, that usually develops in the back of the brain. Symptoms associated with it include headaches, apathy, and unexplained vomiting, soon followed by difficulty in walking as the tumor grows larger.


A cancerous brain tumor most often seen in children. A medulloblastoma is a rapidly growing glioma that usually develops in the back of the brain. Symptoms associated with it include headaches, apathy, and unexplained vomiting, soon followed by difficulty in walking as the tumor grows larger. A medulloblastoma is an invasive tumor and the most common brain tumor of childhood.


A cerebral tumor that occurs during childhood. It is derived from cells that have the apparent potential to mature into neurons. The medulloblastoma usually develops adjacent to the fourth ventricle. It causes an unsteady gait and shaky limb movements. Obstruction to the flow of cerebrospinal fluid causes hydrocephalus. The tumor is sensitive to radiotherapy.


A malignant tumor of the roof of the fourth ventricle and cerebellum. The tumor is the most common malignant brain tumor in childhood.


Medulloblastoma is a malignant brain tumor primarily found in children. It typically originates in the cerebellum, the brain area responsible for posture, balance, and coordination. This tumor grows quickly and can extend to other brain areas and the spinal cord. Common symptoms include morning headaches, consistent vomiting, unsteady walking, and frequent falling.


The tumor is identified using CT scans or MRI and is often treatable with radiotherapy. Surgical intervention and chemotherapy drugs might also be required.


 


Posted

in

by

Tags: