{"id":11964,"date":"2026-05-28T09:06:42","date_gmt":"2026-05-28T07:06:42","guid":{"rendered":"https:\/\/neurohirurgija.in.rs\/?page_id=11964"},"modified":"2026-07-11T23:07:27","modified_gmt":"2026-07-11T21:07:27","slug":"convexity-meningioma","status":"publish","type":"page","link":"https:\/\/neurohirurgija.in.rs\/en\/convexity-meningioma\/","title":{"rendered":"Convexity Meningioma \u2014 Symptoms, Diagnosis, Treatment, and Prognosis"},"content":{"rendered":"\n
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\n Author:<\/span>\n \n Dr. Zeljko Kojadinovic, MD, PhD\n <\/a>\n \u2014 Consultant Neurosurgeon\n <\/div>\n\n
\n Specialized Experience:<\/span>\n 30 years of clinical expertise in neurosurgery.\n <\/div>\n\n
\n Last medically reviewed:<\/span>\n March 08, 2026\n <\/div>\n<\/div>\n\n\n\n
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Who This Convexity Meningioma Page Is For<\/h3>\n <\/div>\n\n

\n This page is intended for patients in whom MRI or CT has revealed a convexity meningioma<\/strong>, a tumor arising from the meninges on the outer surface of the brain beneath the skull.\n <\/p>\n\n

\n If surgery, stereotactic radiosurgery (such as Gamma Knife), radiotherapy, or long-term MRI monitoring has been proposed \u2014 or if specialists have offered different recommendations regarding the urgency or type of treatment \u2014 an individualized \n \n neurosurgical second opinion\n <\/a>\n may help clarify the expected biological behavior of a convexity meningioma, the potential risk of seizures or neurological deterioration, the likelihood of tumor recurrence, and the safest balance between observation, surgery, and radiation therapy based on tumor size, cortical location, growth rate, surrounding brain edema, and overall neurological status.\n <\/p>\n<\/div>\n\n\n\n

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\n When patients seek a second opinion for convexity meningioma\n <\/div>\n\n
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\n \u2022 MRI or CT shows a convexity meningioma and the best treatment strategy is unclear\n <\/div>\n
\n \u2022 The tumor was discovered incidentally and opinions differ between MRI monitoring and surgery\n <\/div>\n
\n \u2022 Seizures, headaches, or weakness suggest cortical brain compression\n <\/div>\n
\n \u2022 Surgery is recommended but risks, extent of removal, or prognosis are uncertain\n <\/div>\n
\n \u2022 Radiosurgery or radiotherapy is proposed but the role of surgery remains unclear\n <\/div>\n
\n \u2022 Specialists recommend different strategies without clear agreement\n <\/div>\n <\/div>\n\n
\n If your situation involves uncertainty regarding diagnosis, urgency, or treatment strategy, you may request an individualized neurosurgical review here:\n \n Request Second Opinion\n <\/a>\n <\/div>\n\n<\/div>\n\n\n\n
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\n Convexity Meningioma \u2014 Quick Summary (Read This First)\n <\/h3>\n\n
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  • Convexity meningioma is a tumor arising from the meninges on the outer surface of the brain beneath the skull.<\/strong> \n These membranes surround and protect the brain and spinal cord.<\/li>\n\n
  • Most convexity meningiomas grow outside the brain tissue.<\/strong> \n They compress the cerebral cortex and surrounding brain structures without directly invading brain tissue.<\/li>\n\n
  • Convexity meningiomas account for approximately 20\u201325% of intracranial meningiomas.<\/strong> \n They represent one of the most common meningioma locations.<\/li>\n\n
  • Many convexity meningiomas grow slowly and may remain stable for years.<\/strong> \n A substantial proportion of tumors discovered incidentally on MRI do not require immediate treatment.<\/li>\n\n
  • Symptoms depend mainly on the cortical brain region affected.<\/strong> \n Seizures, headaches, progressive weakness, numbness on the opposite side of the body, or behavioral changes may occur when the tumor compresses nearby brain structures.<\/li>\n\n
  • MRI with contrast is the most important diagnostic test.<\/strong> \n It shows tumor size, location on the brain surface, surrounding brain edema (swelling), and the relationship to nearby cortical vessels and brain tissue.<\/li>\n\n
  • Not all convexity meningiomas require immediate surgery.<\/strong> \n Many small asymptomatic tumors are initially managed with MRI monitoring. Approximately 60\u201380% of incidentally discovered meningiomas do not require immediate surgery and can be safely observed.<\/li>\n\n
  • Surgery is the main treatment for symptomatic or growing convexity meningiomas.<\/strong> \n Because these tumors lie on the brain surface, complete removal is often achievable.<\/li>\n\n
  • Radiation therapy or stereotactic radiosurgery may be used in selected cases to control tumor growth.<\/strong> \n It is commonly used for residual or recurrent tumor after surgery, for small tumors that show growth but are difficult to remove surgically, for multiple meningiomas, or when patients prefer radiation instead of surgery.<\/li>\n\n
  • Treatment decisions depend mainly on tumor size, cortical location, growth rate, symptoms, and surrounding brain edema.<\/strong> \n The safest strategy is usually individualized.<\/li>\n\n
  • Prognosis of convexity meningioma is often favorable when complete removal is possible.<\/strong> \n Recurrence risk depends mainly on tumor grade and the extent of surgical removal.<\/li>\n\n
  • Most convexity meningiomas are benign WHO Grade I tumors.<\/strong> \nApproximately 80\u201385% of meningiomas belong to Grade I, while about 10\u201315% are atypical (WHO Grade II) and roughly 1\u20133% are malignant (WHO Grade III). Recurrence is more frequent in Grade II and Grade III tumors, and these patients more often require additional treatment such as postoperative radiotherapy and closer long-term MRI follow-up.<\/li>\n\n
  • Although many convexity meningiomas are benign, large tumors can still cause serious neurological problems due to mass effect on the brain.<\/strong><\/li>\n\n <\/ul>\n<\/div>\n\n

    \n Most readers benefit from reviewing this Quick Summary together with the sections on Symptoms of Convexity Meningioma<\/strong>, Diagnosis<\/strong>, Surgical Treatment<\/strong>, Radiation Therapy<\/strong>, and Treatment Decision-Making<\/strong>. Later sections provide more detailed explanations intended for patients seeking a deeper understanding before important treatment decisions are made.\n<\/p>\n\n\n\n