The falcine sinus is an abnormal anatomic structure located in the falx cerebri that is closed after birth and is rarely observed. We describe two cases of persistent falcine sinus. A 60-year-old woman presented with headache. An 11-year-old girl presented with intermittent headache and a palpable scalp mass in the middle of the high parietal area. The straight sinuses were absent in both patients. In both patients, drainage of the galenic system took place through a sinus within the falx, also known as a falcine sinus. Suspicious dysplastic tentorium cerebelli was observed in one patient. It can be concluded that a mesenchymal disorder can be the primary cause for a persistent falcine sinus. © 2010 The Korean Neurosurgical Society.
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Kim, M. S., & Lee, G. J. (2010). Two cases with persistent falcine sinus as congenital variation. Journal of Korean Neurosurgical Society, 48(1), 82–84. https://doi.org/10.3340/jkns.2010.48.1.82