P. SAADA / EURELIOS / SCIENCE PHOTO LIBRARY P. SAADA / EURELIOS / SCIENCE PHOTO LIBRARY
Ear of a foetus. Ultrasound scan showing the ear of a foetus aged 8 months. The pinna (auricle) of the ear is seen facing upwards, with its folds of skin and cartilage clearly evident. At lower right is an outline of the foetal head, with its shoulder at lower left. This ultrasound scan was made by Dr Philippe Saada. Saada has refined the technique of ultrasound to obtain high- definition images. Ultrasound uses high-frequency sound waves to examine soft tissues such as a foetus in the womb or to diagnose organ disease. Ultrasound can show whether foetal development is normal. Photographed at the Ultrasound Centre of La Marjolaine at Montrouge, Paris.
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