Sosa-Najera A, Solorio-Pineda S, Tafur-Grandett AA, Ruiz- Flores MI, Tevera-Ovando CA

Language: Spanish
References: 15
Page: 35-41
PDF size: 657.84 Kb.

ABSTRACT

Background Meningiomas are the most common primary non-glial brain tumors, with an incidence rate of 13-19% in large series of primary intracranial tumors. Meningiomas are considered benign, well circumscribed and slow-growing. They are classified in grade I, grade II and III by the World Health Organization (WHO), for tumors of central nervous system. The recurrence rate of atypical meningiomas ( WHO grade II) is 30-40%. Surgical resection of the tumor and dural implant is the treatment of choice.
Case description. A 42-year old woman with a history of right frontoparietal tumor requiring right parietal craniotomy, subtotal resection of the lesion and Ommaya system placement; presents simple clonic seizures of left hemibody, holocranial headache and left hemiparesis. Tomography and magnetic resonance imaging (MRI) of the skull, enhances with the administration of contrast, with perilesional edema, transcalvarian herniation and proximal portion of the Ommaya catheter.
Conclusions. The present case of recurrent atypical parasagittal meningioma abscess, is a rare case in literature. The placement of any type of drainage adjacent to the tumor functions as foreign body and increases the risk of infections and therefore intratumoral abscesses, inferring a worse prognosis.

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