Presentamos el caso de una paciente que presentó un cuadro de apoplejía quiasmática asociada a alteraciones menstruales cuya tomografía computarizada de cráneo mostró hemorragia supraselar. Fue intervenida con el diagnostico de tumor hipofisiario, pero presentó una lesión hemorrágica en quiasma y la porción proximal del nervio óptico izquierdo. El diagnostico histopatológico fue de un cavernoma. El angioma cavernoso constituye cerca del 15% de todas las malformaciones vasculares del sistema nervioso central, y los del aparato visual son infrecuentes. Se debe sospechar cuando el paciente presenta apoplejía quiasmática u óptica. Su exéresis es útil para evitar empeoramiento o un nuevo déficit visual.
We present the case of a female patient who developed chiasmatic apoplexy and menstrual alterations. CT scanning showed a suprasellar hemorrhage. She underwent surgery with the presumptive diagnosis of pituitary tumor. At surgery, we find a brown-grayish lesion involving left optic nerve and chiasm. Cavernous angioma was diagnosed by histopathology. Cavernous angiomas constitute nearly 15% of all central nervous system vascular malformations. Location at the optic pathway is very rare, but must to be ruled out in the diagnosis of a patient with chiasmatic and/or optic apoplexy. Surgery is useful in preventing worsening of the previous deficit or a new visual defect.
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