ABSTRACT
La pseudohemorragia subaracnoidea es un fenoÌmeno infrecuente que se caracteriza por hallazgos sugestivos de hemorragia subaracnoidea en la tomografiÌa computarizada simple de craÌneo, sin evidencia de la misma en estudios adicionales. Se ha asociado a muÌltiples causas, de las cuales la principal es la encefalopatiÌa hipoÌxico-isqueÌmica posparo cardiaco y reanimacioÌn cardiopulmonar. El contexto cliÌnico y los niveles de atenuacioÌn medidos en Unidades Hounsfield (UH) se deben tener en cuenta al hacer el diagnoÌstico diferencial entre ambas entidades. Se presenta el caso de una paciente con pseudohemorragia subaracnoidea de etiologiÌa multifactorial.
Pseudo-subarachnoid hemorrhage (PSAH) is an infrequent entity characterized by findings in non- contrast head computed tomography that mimic subarachnoid hemorrhage, but without evidence of blood products in further studies. It has been associated with multiple etiologies, with hypoxic ischemic encephalopathy following cardiac arrest and cardiopulmonary resuscitation as the leading cause in literature. Clinical context and attenuation levels measured in Hounsfield Units should be taken into consideration when establishing the differential diagnosis between these entities. The case of a patient with PSAH of multifactorial etiology is presented.