What does dural based mean?
Dural based meningiomas over the convexity of the brain can be asymptomatic and incidentally discovered. These are often slow growing and do not require resection unless symptomatic. Presents as a mass lesion, with symptoms related to its location.
What is a dural based tumor?
Meningiomas are the most common dural tumour. They are regularly being seen as an incidental finding on brain imaging and treated conservatively. However, there are many other dural masses which mimic their appearances, including primary neoplastic processes, metastases, granulomatous diseases and infection.
What is a dural based mass?
Dural masses can be the result of a number of different tumors and conditions, although meningiomas are by far the most common. The differential of a dural mass includes: meningioma. hemangiopericytoma. primary dural lymphoma.
What is dural based meningioma?
Meningiomas are dural-based masses with contrast enhancement and extra-axial origin in different places such as convexity, falx cerebri, or the tentorium; they might as well be located in deep sites along the skull base such as the clivus, olfactory groove, clinoid process, and planum sphenoidale .
Can a lesion be cancerous?
Lesions can be categorized according to whether or not they are caused by cancer. A benign lesion is non-cancerous whereas a malignant lesion is cancerous. For example, a biopsy of a skin lesion may prove it to be benign or malignant, or evolving into a malignant lesion (called a premalignant lesion).
Is a meningioma serious?
Often, meningiomas cause no symptoms and require no immediate treatment. But the growth of benign meningiomas can cause serious problems. In some cases, such growth can be fatal. Meningiomas are the most common type of tumor that originates in the central nervous system.
Is meningioma malignant or benign?
A meningioma is a type of tumor that develops from the meninges, the membrane that covers the brain and spinal cord. Most meningiomas (85-90 percent) are categorized as benign tumors, while 10-15 percent being atypical or malignant (cancerous).
Is a lesion the same as tumor?
A bone lesion is considered a bone tumor if the abnormal area has cells that divide and multiply at higher-than-normal rates to create a mass in the bone. The term “tumor” does not indicate whether an abnormal growth is malignant (cancerous) or benign, as both benign and malignant lesions can form tumors in the bone.
What is the difference between a brain tumor and a lesion?
Broadly speaking, brain lesions consist of certain types of damage to the tissues of the brain. Trauma to the head, certain health conditions, and tumors (malignant or benign) are all considered brain lesions. The causes of brain lesions vary from person to person.
Which is the first type of dural lesion?
The classic dural lesion that is first in everyone’s differential diagnosis is the meningioma; however, there are a wide variety of neoplastic and nonneoplastic lesions that involve the dura. The nonneoplastic lesions encompass both noninfectious and infectious etiologies, including tuberculosis and sarcoid.
Which is the most common dural based mass?
Meningioma is the most common mass involving the dura, making it number one in the differential diagnosis for any dural-based mass; however, a variety of other neoplastic and nonneoplastic lesions also involve the dura. Knowledge of the dural anatomy can provide clues to the various processes that may involve this location.
Are there any diseases that mimic dural masses?
However, there are many other dural masses which mimic their appearances, including primary neoplastic processes, metastases, granulomatous diseases and infection. While some of these are rare, others such as metastases and tuberculosis arise relatively frequently in practice.
Why do dural masses occur in mimics of meningiomas?
A range of pathologies cause meningeal thickening or masses, therefore mimicking meningiomas. Meningiomas commonly calcify and cause bony hyperostosis. Many mimics lack calcification and result in destruction or erosion of the bone. A dural tail is not pathognomonic of meningioma, occurring in many mimics.