Meningosinus anastomosis

The meningiosinus anastomosis (1) is an anastomosis between the sinuses of the dura mater and the cerebrospinal fluid system, which ensures the circulation of cerebrospinal fluid between these two systems. This anatomical element plays an important role in the functioning of the brain and cerebrovascular system.

The anastomosis has two different types: open and closed. A patent anastomosis (2) (commonly known as a fistula) is a distinct opening in the dura mater through which cerebrospinal fluid passes from the sinuses to the