Hypoplastic straight sinus with persistent falcine sinus in an adult with sinus pericranii.

Andereggen, Lukas; Verma, Rajeev Kumar (2018). Hypoplastic straight sinus with persistent falcine sinus in an adult with sinus pericranii. World neurosurgery, 113, pp. 108-109. Elsevier 10.1016/j.wneu.2018.02.028

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Open MRI of a 45-year-old man with panic disorder showed a sinus pericranii (SP). Examination of the scalp revealed a discolored scalp mass and MR venography displayed a hypoplastic straight sinus with persistent falcine sinus. SP is a venous anomaly consisting of a transosseous vascular channel connecting an intracranial sinus with subgaleal veins. High venous pressure in the late embryonic stage, as with a hypoplastic straight sinus, has been hypothesized to predispose affected individuals to develop other venous anomalies, i.e. falcine sinus. Since there is no major venous outflow through this accessory SP in an asymptomatic adult, no intervention was recommended for our patient.

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