En plaque meningioma with angioinvasion.

En plaque meningioma is a rare type of meningioma characterized by infiltrative nature, sheet-like growth and at times invading the bone. We report here a case of en plaque meningioma with typical grade I histomorphology along with unusual feature of angioinvasion. The patient was a 55-year-old man presenting with headache and painful proptosis of right eye. Imaging modalities revealed an en -plaque meningioma extending into the right sylvian fissure, with thickening of right temporal calvarium, greater wing of sphenoid and extension into the orbit. Magnetic resonance angiography showed medial displacement of right middle cerebral artery. The tumor was removed from the sylvian fissure and right temporal convexity. However, only subtotal removal of the intraorbital part was possible. Histology showed a meningothelial meningioma with low tumor cell proliferation, but infiltration into the bone, skeletal muscle and angioinvasion. Recognition of meningiomas en plaque is useful, as these tumors are difficult to resect completely, and are more prone to undergo recurrence or malignant change. In addition, angioinvasion seen in this tumor may have additional prognostic significance.

Intradural Extramedullary Tuberculoma Mimicking En Plaque Meningioma

A 24-year-old man with tuberculosis meningitis developed acute paraplegia and sensory disturbances 5 weeks after receiving conventional antituberculous therapy. Magnetic resonance imaging revealed an intradural extramedullary long segmental mass mimicking en plaque meningioma at the T2-T6 vertebrae levels. Prompt surgical decompression was performed. A histology examination of the mass revealed a tuberculoma. After surgery, the patient showed improved motor power and a normal bladder function. Intradural extramedullary tuberculoma of the spinal cord is rare complication of tuberculosis meningitis, which can occur as a response to conventional antituberculous therapy.

Meningioma: presentación de un caso / Meningioma: case study

Aunque no sean los más frecuentes, los tumores primarios son particularmente importantes en razón de su benignidad. Es esencial realizar el diagnóstico precoz cuando su volumen es pequeño para que el tratamiento neuroquirúrgico pueda contar con todas las probabilidades de un buen pronóstico. En este grupo de tumores se encuentran los meningiomas. Se narra un caso de meningioma en un paciente con antecedentes de hipertensión arterial no controlada. Se hace una revisión de la bibliografía de esta patología; epidemiología, clasificación, manifestaciones clínicas y tratamiento.

Brain tumors are not very common. One group of tumors is primary brain tumors that originate in the brain itself. Most of them are benign but others can have different grades of malignancy. It is important to make an early diagnosis so that the surgical treatment can give the patient a good prognosis. In this group of tumors we can find meningiomas. We present a clinical case of a patient with meningioma who has a clinical history of uncontrolled hypertension. Bibliographic reference is done of the pathology, epidemiology, classification, symptoms and treatment.