Nervous system neoplasia

Retinoblastoma (Rb) is a rare form of cancer that rapidly develops from the immature cells of a retina, the light-detecting tissue of the eye. It is the most common primary malignant intraocular cancer in children, and 80% of retinoblastoma cases are first detected in those under 3 years old.

Meningioma, also known as meningeal tumor, is typically a slow-growing tumor that forms from the meninges, the membranous layers surrounding the brain and spinal cord. Symptoms depend on the location and occur as a result of the tumor pressing on nearby tissue. Many cases never produce symptoms. Occasionally seizures, dementia, trouble talking, vision problems, one sided weakness, or loss of bladder control may occur.

Astrocytoma is a type of brain tumor. Astrocytomas (also astrocytomata) originate from a specific kind of star-shaped glial cell in the cerebrum called an astrocyte. This type of tumor does not usually spread outside the brain and spinal cord, and it does not usually affect other organs. After glioblastomas, astrocytomas are the second most common glioma and can occur in most parts of the brain and occasionally in the spinal cord.

endocrine gland cancer that has material basis in neuroendocrine cells

A craniopharyngioma is a rare type of brain tumor derived from pituitary gland embryonic tissue that occurs most commonly in children, but also affects adults. It may present at any age, even in the prenatal and neonatal periods, but peak incidence rates are childhood-onset at 5–14 years and adult-onset at 50–74 years. People may present with bitemporal inferior quadrantanopia leading to bitemporal hemianopsia, as the tumor may compress the optic chiasm. It has a point prevalence around two per 1,000,000. Craniopharyngiomas are distinct from Rathke's cleft tumours and intrasellar arachnoid cys

A neuroma (; plural: neuromata or neuromas) is a growth or tumor of nerve tissue. Neuromas tend to be benign (i.e. not cancerous); many nerve tumors, including those that are commonly malignant, are nowadays referred to by other terms.

brain cancer that is usually located in the brain, but can occur anywhere in the central nervous system

group of malignant tumors of the nervous system that feature primitive cells with elements of neuronal or glial differentiation

neoplasm located in the spinal cord

Schwannomatosis (SWN) is a group of rare genetic disorders characterized by the development of multiple benign nerve sheath tumors called schwannomas. These tumors arise from Schwann cells, which form the myelin sheath surrounding peripheral nerves. Schwannomatosis is part of the broader group of conditions collectively referred to as NF, which includes neurofibromatosis type 1 (NF1) and all forms of schwannomatosis, including NF2-related schwannomatosis (NF2-SWN), previously called neurofibromatosis type 2.

disorder in cancer patients in which the disease spreads to the membranes surrounding the brain and spinal cord

A ganglioglioma is a rare, slow-growing primary central nervous system (CNS) tumor which most frequently occurs in the temporal lobes of children and young adults. They are mixed cell tumors containing both neural ganglionic cells and neural glial cell components. This should not be confused with a gangliocytoma (ganglion cell tumor) which is composed of neurons of variable sizes but contains no glial cells.

highly aggressive brain tumor, mostly found in children

Astroblastoma is a rare glial tumor derived from the astroblast, a type of cell that closely resembles spongioblastoma and astrocytes. Astroblastoma cells are most likely found in the supratentorial region of the brain that houses the cerebrum, an area responsible for all voluntary movements in the body. It also occurs significantly in the frontal lobe, parietal lobe, and temporal lobe, areas where movement, language creation, memory perception, and environmental surroundings are expressed. These tumors can be present in major brain areas not associated with the main cerebral hemispheres, incl

A hemangiopericytoma is a type of soft-tissue sarcoma that originates in the pericytes in the walls of capillaries. When inside the nervous system, although not strictly a meningioma tumor, it is a meningeal tumor with a special aggressive behavior. It was first characterized in 1942.

Ganglioneuroma (occasionally called a "ganglioma") is a rare and benign tumor of the autonomic nerve fibers arising from neural crest sympathogonia (undifferentiated cells of the sympathetic nervous system). However, ganglioneuromas themselves are fully differentiated neuronal tumors that do not contain immature elements.

Human disease

Ganglioneuroblastoma is a variant of neuroblastoma that is surrounded by ganglion cells.

peripheral nervous system neoplasm that is located in the connective tissue surrounding nerves

human disease