Summary
We recently observed subdural extravasation of contrast medium during transfemoral catheter venography of the cavernous sinus, performed to elucidate the relationship between a parasellar mass and the sinus. The precise mechanism is unknown but a dural tear during manipulation of the guide wire or catheter was thought to be the most likely cause.
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Fujiwara, T., Tanohata, K., Onishi, T. et al. Extravasation of contrast medium into the subdural space during cavernous sinus venography: a rare complication. Neuroradiology 34, 355–357 (1992). https://doi.org/10.1007/BF00588204
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DOI: https://doi.org/10.1007/BF00588204