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Inflamed lymph node, Doppler ultrasound

Inflamed lymph node, Doppler ultrasound

M200/0174

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Credit

SIMON FRASER / SCIENCE PHOTO LIBRARY SIMON FRASER / SCIENCE PHOTO LIBRARY

Caption

Inflamed lymph node. Three-dimensional power Doppler ultrasound scan of blood vessels (orange) in an inflamed lymph node in the neck of a 13- year-old boy. The node contains a network of thin blood vessels (centre right). These drain into the thicker jugular vein at left. Inflammation of a lymph node (lymphadenitis) is usually a response to an infection. The increased lymph node activity produces more infection-fighting lymphocyte cells. Doppler ultrasound scanning detects moving fluids, such as blood, by the frequency change they cause when reflecting high-frequency sound waves. Power Doppler scans use colour to show the moving fluid, but do not show the direction of the flow.

Release details

Model release not required. Property release not required.

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