[Abnormality of hepatic perfusion secondary to superior vena cava obstruction: three case reports].

The aim of this study was to evaluate the altered flow dynamics of liver perfusion that can be observed during superior vena cava obstruction. Through the description of three case reports of patients with SVC obstruction, the authors discuss the different collateral pathways used that result in systemic portal venous shunting creating this altered flow dynamics and their appearance in computed tomography.

[Meningioma of the jugular foramen with a large cervical extension].

Meningioma rarely gives an extra cranial extension. The authors report a case of meningioma of the jugular foramen reaching the left side of the neck. Epidemiological and clinical aspects of meningiomas of the neck are presented.