Pérez NJ, Scherle MC, Hierro GD, Gil AM

Language: Spanish
References: 5
Page: 30-32
PDF size: 171.42 Kb.

ABSTRACT

Introduction: It has been suggested that perimesencephalic subarachnoid hemorrhage could be caused by bleeding of venous origin.
Case report: In a 43 years old woman with a mild Subarachnoid Hemorrhage, non-contrasted CT demonstrated a clot in the left perimesencephalic cisterns, in close proximity to an area where the CT angiography showed an abnormal venous system, which consisted in the draining of the basal vein of Rosenthal toward the lateral sinus.
Conclusions: This observation supports the idea that bleeding secondary to regional increase of venous pressure is an important cause of perimesencephalic hemorrhage.

REFERENCES

1. van Gijn J, van Dongen KJ, Vermeulen M, et al. Perimesencephalic hemorrhage: a nonaneurysmal and benign form of subarachnoid hemorrhage. Neurology. 1985;35:493–97.

2. Watanabe A, et al. Perimesencephalic nonaneurysmal subarachnoid haemorrhage and variations in the veins. Neuroradiology. 2002;44:319–25.

3. van der Schaaf IC, Velthuis BK. Gouw A, Rinkel GJE. Venous Drainage in Perimesencephalic Hemorrhage. Stroke. 2004;35:1614–18.

4. Shad A, Rourke TJ. et al. Straight sinus stenosis as a proposed cause of perimesencephalic non–aneurysmal haemorrhage. J Clin Neurosc. 2008;15:839–41.

5. Schievink WI, Wijdicks EFM. Origin of Pretruncal Nonaneurysmal Subarachnoid Hemorrhage: Ruptured Vein, Perforating Artery, or Intramural Hematoma? Mayo Clin Proc. 2000;75:1169–73.