Perivascular Space

Perivascular spaces include a variety of passageways around arterioles capillaries and venules in the brain along which a range of substances can move.
Perivascular space. The purpose of this paper is to discuss both normal perivascular spaces pvss and pathological giant perivascular spaces gpvss. An extent or expanse of a surface or three dimensional area. Plantar space a fascial space on the sole of the foot divided by septa into the lateral middle and median plantar spaces. Perivascular space a lymph space within the walls of an artery.
Hypertension induced cerebral small vessel disease leading to cognitive impairment. They do not have a direct connection with the subarachnoid space and in fact the fluid within them has a slightly different composition as compared to csf. Although perivascular spaces were first identified over 150 years ago they have come to prominence recently owing to advances in knowledge of the. Pneumatic space a portion of bone occupied by air containing cells especially the spaces constituting the paranasal sinuses.
Perivascular spaces surround perforating arterioles and venules as they course from the subarachnoid space through the brain parenchyma and serve as an important drainage system for interstitial fluids and solutes in the brain. Riascos 10 1 case presentation 10 1 1 history and physical examination a 40 year old man with no major past medical history complains of headache following a minor head trauma. Water covered a large space at the end of the valley. Khanpara and roy f.
The anatomy and physiology of normal pvss including important. The brain pia mater is reflected from the surface of the brain onto the surface of blood vessels in the subarachnoid space. Perivascular spaces also known as virchow robin spaces are pial lined interstitial fluid filled spaces in the brain that surround perforating vessels.