Meningiomas are typically slow growing and benign, but the condition can be complicated by size and rate of growth and compression of surrounding brain tissue. In rare cases, meningiomas can become malignant. Small tumors may be asymptomatic. Large tumors may cause a variety of symptoms including headaches, focal seizures, weakness, numbness, incontinence, apathy, aphasia, anosmia, and increased intracranial pressure.
Risk factors include hormonal factors (progesterone > estrogen > androgens), genetic syndromes such as neurofibromatosis type 2, and exposure to ionizing radiation. Prognosis is generally good, with a 5-year survival rate of 70%. Patients with a history of radiation exposure tend to have more aggressive and atypical tumors with a worse prognosis.
D32.9 – Benign neoplasm of meninges, unspecified
302820008 – Intracranial meningioma
Differential Diagnosis & Pitfalls
Drug Reaction Data