Blood supply under the skin

Blood supply under the skin

 

Infrared photography has been used for many years in medicine. It is especially useful in showing blood vessels close to the surface of the skin. Here a thrombosis (blockage due to a blood clot) in the subclavian vein is apparent as it has caused engorgement of the connected veins in the shoulder and upper arm. Often this cannot be seen in visible light. The cause is normally either strenuous over-use of the arm (e.g. in sports or activities such as chopping wood) or as a result of trauma. So-called effort-induced thrombosis is also known as Paget - von Schrötter disease. Treatment is either by administering anti-clotting drugs such as heparin and warfarin or by surgery.

Image © Biophoto Associates

 

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