Oponiak w otworze potylicznym wielkim

SUMMARY Aim. A case of a very rare meningioma localization in the posterior fossa (at the foramen magnum) is presented. Case report. The patient, a 66-year-old woman suffering from headaches and vertigo, was submitted to MRI examination which reve- aled a meningioma localized at the foramen magnum. Further observation was recommended. However, since the patient's neurological symptoms were aggravating, a subtotal resection of the meningioma was performed 4 years later. The diagnosis of transitional meningio- ma was confi rmed by neuropathological examination. Comment. Neurologists and neurosurgeons relatively often see patients with meningiomas in their clinical practice. However, doubts frequently arise whether asymptomatic or oligosymptomatic patients should receive conservative or rather surgical treatment. Sometimes it is diffi cult to decide whether such patients should be persuaded to submit to a surgery immediately, or the surgery should be postponed until they develop disquieting clinical and neurological symptoms.