HEMANGIOPERICYTIC MENINGIOMA Meaning and
Definition
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Hemangiopericytic meningioma is a rare type of brain tumor that arises from the meninges, which are the protective membranes covering the brain and spinal cord. This tumor is characterized by its distinct histological appearance and the presence of abnormal blood vessels known as pericytes.
The term "hemangiopericytic" refers to the tumor's origin from pericytes, which are cells that surround the blood vessels and play a role in regulating blood flow. In hemangiopericytic meningiomas, these cells become overactive and form abnormal blood vessels in and around the tumor.
These tumors typically grow slowly and can occur in various locations within the central nervous system, including the brain and spinal cord. Symptoms may vary depending on the size and location of the tumor but can include headaches, seizures, visual disturbances, or neurological deficits.
Diagnosis of hemangiopericytic meningioma is usually made through imaging studies such as magnetic resonance imaging (MRI) or computed tomography (CT) scans, followed by a biopsy to confirm the tissue type. Treatment for this type of tumor typically involves surgical removal, which may be challenging due to the invasive nature and tendency to recur. Radiation therapy or targeted therapies may be necessary to manage residual or recurrent tumors.
Overall, hemangiopericytic meningioma is a rare and distinct type of brain tumor characterized by its histological appearance and relationship with pericytes. Continued research is necessary to further understand the underlying causes, optimal treatment approaches, and potential long-term outcomes for individuals affected by this tumor.
Common Misspellings for HEMANGIOPERICYTIC MENINGIOMA
- gemangiopericytic meningioma
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Etymology of HEMANGIOPERICYTIC MENINGIOMA
The word "Hemangiopericytic Meningioma" is a medical term used to describe a type of brain tumor.
The term can be broken down into three parts:
1. Hemangiopericytic: This part of the word comes from "hemangiopericytoma", which is a rare tumor that arises from the pericytes, which are contractile cells that surround blood vessels. The term "hemangiopericytoma" was first coined in 1942 by Stout and Murray when they observed these tumors having a unique relationship with the walls of blood vessels.
2. Meningioma: This part of the word comes from "meninges", which are the protective layers that surround the brain and spinal cord. Meningiomas are tumors that develop from the meninges and are generally benign, meaning they are not cancerous.
