Journal Information
Vol. 4. Issue 3.
Pages 215-218 (January 1993)
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Vol. 4. Issue 3.
Pages 215-218 (January 1993)
Pneumatoencephalocele secondary to a fronto-orbital osteoma. (Case Report)
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C. Barcia, J. López-Trigo, F. Fontana
Servicio de Neurocirugía. Hospital General Universitario de Valencia
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Abstract

We present the case of an osteoma situated in the orbital portion of the left frontal sinus in a 22 year- old male, who also presented pulsatile exophtalmos, diplopia and headache. The neuro-radiological tests revealed also a large intracranial air cavity. Surgery demonstrated the relation between the osteoma and pneumatocele, where the tumor produced effacement of the orbitary roof; this placed the sinusal cavity in contact with the subdural space. A valve mechanism is suggested to explain the accumulation of intracranial air without liquorrhea. Finally, the rarity of the case in the literature is commented on.

Key words:
Frontal sinus
Frontal lobe
Orbital tumor
Osteoma
Pneumatoencephalocele
Resumen

Presentarnos un caso de osteoma intraorbitario izquierdo en un varón de 22 años, que cursó con exoftalmos pulsátil, diplopia y cefaleas. En el estudio neurorradiológico se encontró, además, una amplia colección aérea en el lóbulo frontal izquierdo. Fue intervenido, encontrándose en el acto quirúrgico la relación entre ambos: el tumor producía un defecto en el techo de la órbita y la dura, poniendo en contacto las cavidades sinusales con el espacio subdural. Se postula un mecanismo valvular para explicar el gran acúmulo de aire intracraneal sin aparición de licuorrea. Finalmente se realiza una revisión de la literatura constatándose lo excepcional del caso.

Palabras clave:
Lóbulo frontal
Osteoma
Pneumatoencefalocele
Seno frontal

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